Table of Contents

Component Description

The cardiovascular (CV) fitness component was implemented in the NHANES in 1999. The goals of this component are to provide:

  1. nationally representative data on cardiovascular fitness;
  2. prevalence estimates of persons at risk due to poor physical fitness; and
  3. data to study the association between cardiovascular fitness and other health conditions and risk factors, such as obesity, cardiovascular disease, diabetes, hypertension, and activity and dietary patterns.

Eligible Sample

Survey participants aged 12-49 years old are eligible for the CV fitness component.

Participants are excluded from this component based on medical conditions, medications, physical limitations, limits on heart rate and blood pressure, and irregular heart rates. The screening is done prior to the treadmill test using questions in the household interview, questions administered by the physician in the NHANES Mobile Examination Center (MEC) and aspects of the physician examination such as measurements of heart rate and blood pressure. The list of exclusion criteria used for the CV fitness component is attached as Appendix A.

Protocol and Procedure

The CV fitness exam was performed by trained health technicians. The protocol is a submaximal exercise test. Based on gender, age, body mass index, and self-reported level of physical activity, participants are assigned to one of eight treadmill test protocols. The goal of each protocol is to elicit a heart rate that is approximately 75 percent of the age-predicted maximum (220-age) by the end of the test. Each protocol includes a 2-minute warm-up, two 3-minute exercise stages, and a 2-minute cool down period.

Heart rate was monitored continuously using an automated monitor with four electrodes connected to thorax and abdomen of the participant and was recorded at the end of warm-up, each exercise stage, and each minute of recovery. Blood pressure was measured at the end of each stage. At the end of warm-up and each exercise stage, participants were asked to rate their perceived exertion using the Borg scale.

The main outcome of this component is the estimated maximal oxygen uptake (VO2max). Based on gender and age specific criteria, the estimated VO2max is also categorized and reported as “low”, “moderate” or “high” level of cardiovascular fitness in the present dataset.

Detailed descriptions of the protocol are provided in the NHANES Cardiovascular Fitness Procedure Manual (National Center for Health Statistics, 2004).

Quality Assurance & Quality Control

Health technicians are regularly monitored by NHANES supervisory staff and expert consultants from the Cooper Institute using a structured performance evaluation and an annual recertification process. Retraining sessions are conducted periodically with the technicians to reinforce the proper protocols and technique. Inspection, calibration, and maintenance of the equipment and supplies are also performed on a regular basis.

As part of on-going quality control practice, all the data are reviewed systematically for logical inconsistencies and technician errors.

Chapter 6 of the NHANES Cardiovascular Fitness Procedure Manual details the quality control procedures.

Data Processing and Editing

During the data processing, edits were made to ensure the logical consistency and analytic usefulness of the data. Extreme values were reviewed and cross-checked with other available data. When there was insufficient information to conclude that the values were invalid, they were retained in the data set.

Variable specific editing:

CVDEXSTS (CV fitness exam status)

This derived variable indicates the following for each participants:

  1. VO2max estimated.
  2. Tested but VO2max estimate missing - data obtained during the treadmill test were insufficient in calculating VO2max.
  3. Did not participate in the treadmill test.

CVDEXCMT (Comment code for the exam status)

This derived variable denotes the reason the treadmill test was not completed or data are missing.

“0” – None: the exam was completed with no missing data point present.
“1” – Met exclusion criteria: exam was not done due to the participant met the exclusion criteria of the component other than pregnancy. Responses in variables CVDEXCL1 - CVDEXCL6 identify specific exclusion criteria the participant met.
“2” – Pregnant more than 12 weeks: pregnant women are excluded from the component because physiologic changes with pregnancy affect heart rate, and therefore the interpretation of the data.
“3” – Refusal: participant refused to undergo or continue the test.
“4” – No time: the exam was not done because there was not enough time.
“5” – Technical problem: problems that occurred during the test with equipment, software applications, or technician error.
“6” – Met priority 1 stopping criteria: participant discomfort or distress observed by the health technician or reported by the participant that warranted an emergency stop of the protocol. See Cardiovascular Fitness Procedure Manual, section 3.13.1 for further details.
“7” – Met priority 2 stopping criteria: safety concerns arose during the test that warranted an early stop of the protocol. Responses in variables CVQ220a-CVQ220m identify specific reason(s) called for the priority 2 stop. See Cardiovascular Fitness Procedure Manual, section 3.13.2 for further details.
“8” – Not able to calculate VO2max: heart rate obtained at the end of stage 2 lower than what obtained at the end of stage 1, or the difference between stages 1 and 2 heart rates is 5 beat/minute or less.
“90” – Other.

Please note that these codes are descriptive and that incomplete treadmill test or missing data does not necessarily denote that VO2max was not estimated. For example, if the monitor indicated that the participant’s systolic blood pressure (SBP) suddently dropped more than 20 mmHg at 2 minutes 54 seconds of the stage 2, the technician would terminate the stage 2 testing based on the priority 2 stopping criteria. The exam status comment, CVDEXCMT, will be coded as “7” (Met priority 2 stopping criteria) for this record. It will also be shown in the record that the amount of time spent in stage 2 is less than 3 minutes (CVDS2TIM=2.9 minutes) and the reason for priority 2 stop is a significant drop in SBP (CVQ220e=1). On the other hand, since the end of stage 2 heart rate measurment was usually captured at approximately 2:40 to 2:50 minutes into stage 2, enough data were collected from this participant to calculate his/her estimated VO2max, even with an incomplete stage 2 test.

CVDEXCL1 – CVDEXCL6 (Reasons for exclusion)

The exclusion criteria used for the CV fitness component include more than 50 questions or measurements collected during the household interview and the examinations in the MEC. This set of variables summarizes these exclusion criteria into six categories: physical functioning limitations, cardiovascular conditions/ symptoms, lung/breathing conditions/symptoms, asthma symptoms, medication exclusions, and others. Appendix A documents the classification frames for these categories. These six variables are not exclusive to each other to accommodate participants who met multiple criteria in different categories.

CVXPARC (Physical activity level)

This variable summarizes the responses from a series of questions and describes the participant’s typical physical activity level using the NASA/JSC physical activity scale (Ross, 1990). See Cardiovascular Fitness Procedure Manual, Appendix E for further details.

CVDVOMAX (Predicted VO2max)

This derived variable designates predicted VO2max value calculated with the equation developed by Jackson et al (Jackson, 1990). The prediction model is based on participant’s gender, age, body mass index, and self-reported level of physical activity. Predicted VO2max value is used in the determination of the exercise protocol for the treadmill test. See Cardiovascular Fitness Procedure Manual, Appendix F for further details.

CVAPROT and CVDPROT (Assigned exercise protocol and the actual protocol used in stages 1 and 2)

Each participant was assigned to one of 8 protocols based on the predicted VO2max. According to the procedure, if the heart rate in warm-up is greater than 60% of the predicted maximal heart rate (PMHR), the assigned exercise protocol is decreased by 1 for the remainder of the treadmill test. When the heart rate in warm-up is less than 50% of the PMHR, the assigned protocol is increased by 1 for the remainder of the test. The variable CVAPROT denotes the exercise protocol that was originally assigned to the case while variable CVDPROT reflects the actual exercise protocol used in stage 1 and stage 2 after the adjustment during warm-up. See CV Fitness Procedures Manual, Sections 3.12 and 4.5 for further details.

CVDESVO2 (Estimated maximal oxygen uptake)

This derived variable designates the main outcome of the component: VO2max (ml/kg/min). It is estimated by extrapolation using measured heart rate responses to known levels of exercise workloads, assuming the relation between heart rate and oxygen consumption is linear during exercise (American College of Sports Medicine, 1995). See the CV Fitness Procedures Manual, Appendix G for further details.

CVDFITLV (Cardiovascular fitness level)

The level of cardiovascular fitness is categorized based on gender-age specific cut-points of estimated VO2max. The reference cut-points used for adults 20-49 years are based on data from the Aerobics Center Longitudinal Study (ACLS) (American College of Sports Medicine, 1995, Blair, 1989). Low level of CV fitness is defined as an estimated VO2max below the 20th percentile of the ACLS data of the same gender and age group; moderate fitness is defined as a value between the 20th and 59th percentile, and high fitness level is defined as at or above the 60th percentile. The reference standards used for adolescents and young adults 12-19 years are based on the criteria used in the FITNESSGRAM program (Cureton, 1990, Cureton, 1999). See CV Fitness Procedures Manual, Appendix I for further details.

Analytic Notes

The present dataset contains the NHANES CV fitness data collected during 2003-2004. It is strongly recommended that data users merge this file with the CV fitness data collected in NHANES 1999-2000 and 2001-2002 to ensure an adequate sample size for analysis. NHANES CV fitness data collected in these previous years are publicly available on the NHANES website.

The NHANES examination sample weights should be used for analyses with the CV fitness data. When combining two or more 2-year cycles of the continuous NHANES, the user must calculate new sample weights before beginning any analysis of the data. Please refer to the NHANES Analytic and Reporting Guidelines for further details on the use of sample weights, percedures of calculating weights for combining multiple cycles, and other analytic issues. The Analytic Guidelines are available on the NHANES website.
To ensure the safety and validity of the test, a series of exclusion criteria were developed for the NHANES CV fitness component to preclude participants with conditions that might endanger them during the testing or affect the estimation of the VO2max from the exam. As a result, approximately 70% of the eligible NHANES participants were tested in this component during 1999-2002. The exclusion rate increases with age. In the present dataset, women have a much higher exclusion rate than men. It is largely due to the pregnancy exclusion which accounts for about 23% of the exclusions among women, and the fact that pregnant women are one of the subpopulations oversampled in the NHANES 2003-2004. Data users need to be aware of the exclusion rate and be cautious when making inferences for the analyses.

Approximately 9% of the participants in 2003-2004 underwent the treadmill test but did not have their VO2max estimated. Most of these cases resulted from a prematurely terminated test due to meeting the priority 2 stopping criteria. Analysts need to take the incomplete tests into account when interpreting the data.

It is not feasible to utilize a maximal treadmill test to directly measure the cardiovascular fitness level in a population-based study setting such as NHANES. However, due to the nature of the submaximal test, some estimates obtained in this component may appear extreme compared to data obtained from more direct measures. Analysts need to carefully examine the data distribution and consider whether or not it is appropriate to include or exclude extreme values in a given analysis.

During the course of data collection in 2003-2004, several protocol modifications were implemented to help improve the completion rate. These modifications do not affect the comparability of the data and are described below:

  1. Add participant’s perceived exertion factor to the existing stopping criteria related to pre-determined heart rate limits. For example, if a participant’s heart rate exceeded 80% of predicted maximal heart rate during stage 1, the test would be stopped only if the participant also reported perceived exertion > 17 and confirmed that he/she was unable to continue the test.
  2. Eliminate exercise protocol 1 and protocol 8 for all participants and protocol 2 for participants 12-19 years. Accordingly, persons who used to be assigned to exercise protocol 1 were re-assigned to protocol 2, and persons who used to be assigned to exercise protocol 8 were re-assigned to protocol 7.

References

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number
Target:
Both males and females 12 YEARS - 49 YEARS

CVDEXSTS - CV fitness exam status

Variable Name:
CVDEXSTS
SAS Label:
CV fitness exam status
English Text:
CV fitness exam status
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 VO2max estimated 2809 2809
2 Tested but VO2max estimate missing 415 3224
3 Not done 1439 4663
. Missing 0 4663

CVDEXCMT - Comment code for CV fitness exam status

Variable Name:
CVDEXCMT
SAS Label:
Comment code for CV fitness exam status
English Text:
Comment code for CV fitness exam status
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 None 2103 2103
1 Met exclusion criteria 873 2976
2 Pregnant more than 12 weeks 203 3179
3 Refusal 67 3246
4 No time 272 3518
5 Technical problem 688 4206
6 Met priority 1 stopping criteria 73 4279
7 Met priority 2 stopping criteria 314 4593
8 Not able to calculate VO2max 12 4605
90 Other 58 4663
. Missing 0 4663

CVDEXCL1 - Excluded per physical limitations

Variable Name:
CVDEXCL1
SAS Label:
Excluded per physical limitations
English Text:
Excluded from exam due to selected physical functioning limitations
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 328 328
2 No 545 873
. Missing 3790 4663

CVDEXCL2 - Excluded per cardiovascular conditions

Variable Name:
CVDEXCL2
SAS Label:
Excluded per cardiovascular conditions
English Text:
Excluded from exam due to selected cardiovascular conditions/symptoms
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 336 336
2 No 537 873
. Missing 3790 4663

CVDEXCL3 - Excluded per lung/breathing conditions

Variable Name:
CVDEXCL3
SAS Label:
Excluded per lung/breathing conditions
English Text:
Excluded from exam due to selected lung/breathing conditions/symptoms
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 183 183
2 No 690 873
. Missing 3790 4663

CVDEXCL4 - Excluded per asthma symptoms

Variable Name:
CVDEXCL4
SAS Label:
Excluded per asthma symptoms
English Text:
Excluded from exam due to selected asthma symptoms
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 108 108
2 No 765 873
. Missing 3790 4663

CVDEXCL5 - Excluded per medications

Variable Name:
CVDEXCL5
SAS Label:
Excluded per medications
English Text:
Excluded from exam due to taking selected exclusionary medications
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 97 97
2 No 776 873
. Missing 3790 4663

CVDEXCL6 - Excluded per other specific reasons

Variable Name:
CVDEXCL6
SAS Label:
Excluded per other specific reasons
English Text:
Excluded from exam due to other specific reasons
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 92 92
2 No 781 873
. Missing 3790 4663

CVQ220a - Priority 2 Stop, excessive HR in stage 2

Variable Name:
CVQ220a
SAS Label:
Priority 2 Stop, excessive HR in stage 2
English Text:
Reason for Priority 2 Stop: Heart rate exceeds predetermined limit during first 2 minutes of stage 2
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 116 116
2 No 198 314
. Missing 4349 4663

CVQ220b - Priority 2 Stop, excessive HR in stage 1

Variable Name:
CVQ220b
SAS Label:
Priority 2 Stop, excessive HR in stage 1
English Text:
Reason for Priority 2 Stop: Heart rate exceeds predetermined limit during stage 1
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 55 55
2 No 259 314
. Missing 4349 4663

CVQ220c - Priority 2 Stop, excessive BP

Variable Name:
CVQ220c
SAS Label:
Priority 2 Stop, excessive BP
English Text:
Reason for Priority 2 Stop: Exercise blood pressure exceeds 260 mmHg systolic and/or 115 mmHg diastolic
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 10 10
2 No 304 314
. Missing 4349 4663

CVQ220e - Priority 2 Stop, significant drop in SBP

Variable Name:
CVQ220e
SAS Label:
Priority 2 Stop, significant drop in SBP
English Text:
Reason for Priority 2 Stop: Significant drop (> 20 mm Hg) in systolic blood pressure during exercise
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 28 28
2 No 286 314
. Missing 4349 4663

CVQ220g - Priority 2 Stop, variability in HR

Variable Name:
CVQ220g
SAS Label:
Priority 2 Stop, variability in HR
English Text:
Reason for Priority 2 Stop: Sudden, noticeable variability in heart rate (sudden change of more than 30 beats/minute during a stage)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 3 3
2 No 311 314
. Missing 4349 4663

CVQ220h - Priority 2 Stop, participant request

Variable Name:
CVQ220h
SAS Label:
Priority 2 Stop, participant request
English Text:
Reason for Priority 2 Stop: Participant requests to stop test or reports severe fatigue
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 32 32
2 No 282 314
. Missing 4349 4663

CVQ220i - Priority 2 Stop, equipment failure

Variable Name:
CVQ220i
SAS Label:
Priority 2 Stop, equipment failure
English Text:
Reason for Priority 2 Stop: Equipment failure
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 4 4
2 No 310 314
. Missing 4349 4663

CVQ220j - Priority 2 Stop, participant grips rails

Variable Name:
CVQ220j
SAS Label:
Priority 2 Stop, participant grips rails
English Text:
Reason for Priority 2 Stop: Participant is unable to stop gripping hand rails
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 24 24
2 No 290 314
. Missing 4349 4663

CVQ220k - Priority 2 Stop, participant overexerted

Variable Name:
CVQ220k
SAS Label:
Priority 2 Stop, participant overexerted
English Text:
Reason for Priority 2 Stop: Participant reports a rating of perceived exertion more than 17
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 27 27
2 No 287 314
. Missing 4349 4663

CVQ220l - Priority 2 Stop, technician discretion

Variable Name:
CVQ220l
SAS Label:
Priority 2 Stop, technician discretion
English Text:
Reason for Priority 2 Stop: Technician discretion (technician notices signs of severe exertion)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 10 10
2 No 304 314
. Missing 4349 4663

CVQ220m - Priority 2 Stop, other specified reasons

Variable Name:
CVQ220m
SAS Label:
Priority 2 Stop, other specified reasons
English Text:
Reason for Priority 2 Stop: Other specified reasons
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 36 36
2 No 278 314
. Missing 4349 4663

CVDEXLEN - Length of CV fitness exam (min)

Variable Name:
CVDEXLEN
SAS Label:
Length of CV fitness exam (min)
English Text:
Length of the CV fitness exam (minutes)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 35.53 Range of Values 4663 4663
. Missing 0 4663

CVDEXMER - Examiner ID code

Variable Name:
CVDEXMER
SAS Label:
Examiner ID code
English Text:
Examiner ID code
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
15 to 90 Range of Values 4663 4663
. Missing 0 4663

CVDPMHR - Predicted maximal heart rate (per min)

Variable Name:
CVDPMHR
SAS Label:
Predicted maximal heart rate (per min)
English Text:
Predicted maximal heart rate (per minute)
English Instructions:
Predicted maximal heart rate = 220 - (Age at interview)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
171 to 208 Range of Values 4663 4663
. Missing 0 4663

CVXPARC - Physical activity readiness code

Variable Name:
CVXPARC
SAS Label:
Physical activity readiness code
English Text:
Physical activity readiness (PAR) code
English Instructions:
The PAR code was determined by a series of questions to describe the participant's typical physical activity level. (See CV Fitness Procedures Manual, Appendix E)
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 7
Code or Value Value Description Count Cumulative Skip to Item
0 Little or no regular recreation, sport or physical activity and avoids walking or exertion 240 240
1 Little or no regular recreation, sport or physical activity but walks for pleasure and occasionally exercises 502 742
2 Participating regularly in recreation or work requiring modest physical activity for 10 to 60 minutes per week 626 1368
3 Participating regulalry in recreation or work requiring modest physical activity for more than 60 minutes per week 1071 2439
4 Participating regularly in heavy physical activity for less than 30 minutes per week 30 2469
5 Participating regularly in heavy physical activity for 30 - 60 minutes per week 93 2562
6 Participating regularly in heavy physical activity for 1 - 3 hours per week 202 2764
7 Participating regularly in heavy physical activity for more than 3 hours per week 450 3214
. Missing 1449 4663

CVDVOMAX - Predicted VO2max (ml/kg/min)

Variable Name:
CVDVOMAX
SAS Label:
Predicted VO2max (ml/kg/min)
English Text:
Predicted maximal oxygen uptake (ml/kg/min)
English Instructions:
Predicted VO2max = 56.363 + [1.921 x (PAR Code)] - [0.381 x (Age at interview)] - [0.754 x (BMI)] + [10.987 x (F=0, M=1)] . This is used in the determination of the exercise protocol used in the treadmill test. (See CV Fitness Procedures Manual, Appendix F)
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 100
Code or Value Value Description Count Cumulative Skip to Item
3.52 to 65.03 Range of Values 3214 3214
. Missing 1449 4663

CVAPROT - Assigned exercise protocol

Variable Name:
CVAPROT
SAS Label:
Assigned exercise protocol
English Text:
Assigned exercise protocol
English Instructions:
See CV Fitness Procedures Manual, Section 3.7 and Appendix H
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 9
Code or Value Value Description Count Cumulative Skip to Item
1 to 8 Range of Values 3214 3214
. Missing 1449 4663

CVDPROT - Exercise protocol used in stage 1 and 2

Variable Name:
CVDPROT
SAS Label:
Exercise protocol used in stage 1 and 2
English Text:
Exercise protocol used in stage 1 and stage 2 after adjustment for warm-up heart rate
English Instructions:
If the heart rate in Warm-up is greater than 60 % of the predicted maximal heart rate (PMHR), the assigned exercise protocol is decreased by 1 for the remainder of the treadmill test. If the heart rate in Warm-up is less than 50 % of the PMHR, the assigned exercise protocol is increased by 1 for the remainder of the treadmill test. This variable reflects the actual exercise protocol used in stage 1 and stage 2 after the adjustment for heart rate during warm-up. (See CV Fitness Procedures Manual, Sections 3.12 and 4.5)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 8 Range of Values 3214 3214
. Missing 1449 4663

CVATEMP - Room temperature (degrees F)

Variable Name:
CVATEMP
SAS Label:
Room temperature (degrees F)
English Text:
Room temperature (Degrees Fahrenheit)
English Instructions:
Measured by a digital thermometer directly integrated with the computer system. If temperature is not captured automatically, the temperature can be read off the monitor and entered manually.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 140
Code or Value Value Description Count Cumulative Skip to Item
59.1 to 85 Range of Values 3213 3213
. Missing 1450 4663

CVAARM - Arm selected for blood pressure monitor

Variable Name:
CVAARM
SAS Label:
Arm selected for blood pressure monitor
English Text:
Arm selected for blood pressure monitoring
English Instructions:
Right arm is used for all measurements unless that arm cannot be used, then the left arm is used.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Right 3197 3197
2 Left 15 3212
3 Could not obtain 0 3212
. Missing 1451 4663

CVACUFF - Cuff size for blood pressure monitor

Variable Name:
CVACUFF
SAS Label:
Cuff size for blood pressure monitor
English Text:
Cuff size used for blood pressure monitoring
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Child 84 84
2 Adult 1491 1575
3 Large arm 1637 3212
. Missing 1451 4663

CVAVEST - Mesh vest used

Variable Name:
CVAVEST
SAS Label:
Mesh vest used
English Text:
Mesh vest used
English Instructions:
Mesh vest is used with some male participants to help maintain adherence of electrodes to the chest when chest hair is present.
Target:
Males only 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 11 11
2 No 1730 1741
7 Refused 0 1741
. Missing 2922 4663

CVAWS1 - Warm-up speed (mph)

Variable Name:
CVAWS1
SAS Label:
Warm-up speed (mph)
English Text:
Warm-up speed (miles per hour)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 3.7
Code or Value Value Description Count Cumulative Skip to Item
1.7 to 3.6 Range of Values 3209 3209
. Missing 1454 4663

CVAWG1 - Warm-up grade (% incline)

Variable Name:
CVAWG1
SAS Label:
Warm-up grade (% incline)
English Text:
Warm-up grade (% incline)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 14.5
Code or Value Value Description Count Cumulative Skip to Item
0 to 5 Range of Values 3209 3209
. Missing 1454 4663

CVDWTIM - Amount of time spent in warm-up (min)

Variable Name:
CVDWTIM
SAS Label:
Amount of time spent in warm-up (min)
English Text:
Amount of time spent in warm-up (minutes)
English Instructions:
If warm-up is completed, the time is always 2 minutes.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1333 to 2 Range of Values 3209 3209
. Missing 1454 4663

CVXWRPE - Warm-up rating of perceived exertion

Variable Name:
CVXWRPE
SAS Label:
Warm-up rating of perceived exertion
English Text:
Warm-up rating of perceived exertion (RPE)
English Instructions:
RPE is a scale of perceived exertion with a range of 6-20 with 6 being equivalent to a low level of effort and 20 being maximal exertion. The exam is stopped if the participant rates his/her effort greater than 17. (See CV Fitness Procedures Manual, Chapters 3.9.7 and 3.10.1)
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
6 to 20
Code or Value Value Description Count Cumulative Skip to Item
6 to 19 Range of Values 3158 3158
. Missing 1505 4663

CVDWHR - Warm-up heart rate (per min)

Variable Name:
CVDWHR
SAS Label:
Warm-up heart rate (per min)
English Text:
Warm-up heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system. (See CV Fitness Procedures Manual, Sections 3.9.6 and 4.4.4)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
70 to 170 Range of Values 2799 2799
. Missing 1864 4663

CVDWSY - Warm-up systolic BP (mm Hg)

Variable Name:
CVDWSY
SAS Label:
Warm-up systolic BP (mm Hg)
English Text:
Warm-up systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
62 to 205 Range of Values 2798 2798
. Missing 1865 4663

CVDWDI - Warm-up diastolic BP (mm Hg)

Variable Name:
CVDWDI
SAS Label:
Warm-up diastolic BP (mm Hg)
English Text:
Warm-up diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
39 to 155 Range of Values 2798 2798
. Missing 1865 4663

CVDS1S - Stage 1 speed (mph)

Variable Name:
CVDS1S
SAS Label:
Stage 1 speed (mph)
English Text:
Stage 1 speed (miles per hour)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 3.7
Code or Value Value Description Count Cumulative Skip to Item
2.1 to 3.7 Range of Values 3187 3187
. Missing 1476 4663

CVDS1G - Stage 1 grade (% incline)

Variable Name:
CVDS1G
SAS Label:
Stage 1 grade (% incline)
English Text:
Stage 1 grade (% incline)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 14.5
Code or Value Value Description Count Cumulative Skip to Item
0.5 to 8.5 Range of Values 3187 3187
. Missing 1476 4663

CVDS1TIM - Amount of time spent in Stage 1 (min)

Variable Name:
CVDS1TIM
SAS Label:
Amount of time spent in Stage 1 (min)
English Text:
Amount of time spent in Stage 1 (minutes)
English Instructions:
If Stage 1 is completed, the time is always 3 minutes.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.0667 to 3 Range of Values 3186 3186
. Missing 1477 4663

CVXS1RPE - Stage 1 rating of perceived exertion

Variable Name:
CVXS1RPE
SAS Label:
Stage 1 rating of perceived exertion
English Text:
Stage 1 rating of perceived exertion (RPE)
English Instructions:
RPE is a scale of perceived exertion with a range of 6-20 with 6 being equivalent to a low level of effort and 20 being maximal exertion. The exam is stopped if the participant rates his/her effort greater than 17. (See CV Fitness Procedures Manual, Chapters 3.9.7 and 3.10.1)
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
6 to 20
Code or Value Value Description Count Cumulative Skip to Item
6 to 20 Range of Values 3067 3067
. Missing 1596 4663

CVDS1HR - Stage 1 heart rate (per min)

Variable Name:
CVDS1HR
SAS Label:
Stage 1 heart rate (per min)
English Text:
Stage 1 heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system. In the event the heart rate is not captured automatically at the end of stage 1, the technician would manually enter the readings from the heart rate monitor. (See CV Fitness Procedures Manual, Sections 3.9.8 and 4.4.6)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
81 to 186 Range of Values 3052 3052
. Missing 1611 4663

CVDS1SY - Stage 1 systolic BP (mm Hg)

Variable Name:
CVDS1SY
SAS Label:
Stage 1 systolic BP (mm Hg)
English Text:
Stage 1 systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
69 to 257 Range of Values 2670 2670
. Missing 1993 4663

CVDS1DI - Stage 1 diastolic BP (mm Hg)

Variable Name:
CVDS1DI
SAS Label:
Stage 1 diastolic BP (mm Hg)
English Text:
Stage 1 diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
36 to 129 Range of Values 2670 2670
. Missing 1993 4663

CVDS2S - Stage 2 speed (mph)

Variable Name:
CVDS2S
SAS Label:
Stage 2 speed (mph)
English Text:
Stage 2 speed (miles per hour)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 3.7
Code or Value Value Description Count Cumulative Skip to Item
2.1 to 3.7 Range of Values 3042 3042
. Missing 1621 4663

CVDS2G - Stage 2 grade (% incline)

Variable Name:
CVDS2G
SAS Label:
Stage 2 grade (% incline)
English Text:
Stage 2 grade (% incline)
English Instructions:
See CV Fitness Procedures Manual, Appendix J for speed and grade table by protocol and stage
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 14.5
Code or Value Value Description Count Cumulative Skip to Item
4.5 to 14.5 Range of Values 3042 3042
. Missing 1621 4663

CVDS2TIM - Amount of time spent in Stage 2 (min)

Variable Name:
CVDS2TIM
SAS Label:
Amount of time spent in Stage 2 (min)
English Text:
Amount of time spent in Stage 2 (minutes)
English Instructions:
If Stage 2 is completed, the time is always 3 minutes.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.0167 to 3 Range of Values 3037 3037
. Missing 1626 4663

CVXS2RPE - Stage 2 rating of perceived exertion

Variable Name:
CVXS2RPE
SAS Label:
Stage 2 rating of perceived exertion
English Text:
Stage 2 rating of perceived exertion (RPE)
English Instructions:
RPE is a scale of perceived exertion with a range of 6-20 with 6 being equivalent to a low level of effort and 20 being maximal exertion. The exam is stopped if the participant rates his/her effort greater than 17 and confirms unable to continue the test. (See CV Fitness Procedures Manual, Chapters 3.9.7 and 3.10.1)
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
6 to 20
Code or Value Value Description Count Cumulative Skip to Item
6 to 20 Range of Values 2839 2839
. Missing 1824 4663

CVDS2HR - Stage 2 heart rate (per min)

Variable Name:
CVDS2HR
SAS Label:
Stage 2 heart rate (per min)
English Text:
Stage 2 heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system. In the event the heart rate is not captured automatically at the end of stage 2, the technician would manually enter the readings from the heart rate monitor. (See CV Fitness Procedures Manual, Sections 3.9.9 and 4.4.7)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
83 to 202 Range of Values 2834 2834
. Missing 1829 4663

CVDS2SY - Stage 2 systolic BP (mm Hg)

Variable Name:
CVDS2SY
SAS Label:
Stage 2 systolic BP (mm Hg)
English Text:
Stage 2 systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
66 to 278 Range of Values 2489 2489
. Missing 2174 4663

CVDS2DI - Stage 2 diastolic BP (mm Hg)

Variable Name:
CVDS2DI
SAS Label:
Stage 2 diastolic BP (mm Hg)
English Text:
Stage 2 diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
38 to 159 Range of Values 2489 2489
. Missing 2174 4663

CVDR1TIM - Amount of time spent in Recovery 1 (min)

Variable Name:
CVDR1TIM
SAS Label:
Amount of time spent in Recovery 1 (min)
English Text:
Amount of time spent in Recovery 1 (minutes)
English Instructions:
If Recovery 1 is completed, the time is always 1 minute.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.0667 to 1 Range of Values 3155 3155
. Missing 1508 4663

CVDR1HR - Recovery 1 heart rate (per min)

Variable Name:
CVDR1HR
SAS Label:
Recovery 1 heart rate (per min)
English Text:
Recovery 1 heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
37 to 215 Range of Values 2858 2858
. Missing 1805 4663

CVDR1SY - Recovery 1 systolic BP (mm Hg)

Variable Name:
CVDR1SY
SAS Label:
Recovery 1 systolic BP (mm Hg)
English Text:
Recovery 1 systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
65 to 266 Range of Values 2857 2857
. Missing 1806 4663

CVDR1DI - Recovery 1 diastolic BP (mm Hg)

Variable Name:
CVDR1DI
SAS Label:
Recovery 1 diastolic BP (mm Hg)
English Text:
Recovery 1 diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
39 to 178 Range of Values 2857 2857
. Missing 1806 4663

CVDR2TIM - Amount of time spent in Recovery 2 (min)

Variable Name:
CVDR2TIM
SAS Label:
Amount of time spent in Recovery 2 (min)
English Text:
Amount of time spent in Recovery 2 (minutes)
English Instructions:
If Recovery 2 is completed, the time is always 1 minute.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.8667 to 1 Range of Values 3135 3135
. Missing 1528 4663

CVDR2HR - Recovery 2 heart rate (per min)

Variable Name:
CVDR2HR
SAS Label:
Recovery 2 heart rate (per min)
English Text:
Recovery 2 heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
69 to 205 Range of Values 2953 2953
. Missing 1710 4663

CVDR2SY - Recovery 2 systolic BP (mm Hg)

Variable Name:
CVDR2SY
SAS Label:
Recovery 2 systolic BP (mm Hg)
English Text:
Recovery 2 systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
70 to 261 Range of Values 2951 2951
. Missing 1712 4663

CVDR2DI - Recovery 2 diastolic BP (mm Hg)

Variable Name:
CVDR2DI
SAS Label:
Recovery 2 diastolic BP (mm Hg)
English Text:
Recovery 2 diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
39 to 155 Range of Values 2951 2951
. Missing 1712 4663

CVDR3TIM - Amount of time spent in Recovery 3 (min)

Variable Name:
CVDR3TIM
SAS Label:
Amount of time spent in Recovery 3 (min)
English Text:
Amount of time spent in Recovery 3 (minutes)
English Instructions:
If Recovery 3 is completed, the time is always 1 minute.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.1167 to 1 Range of Values 2261 2261
. Missing 2402 4663

CVDR3HR - Recovery 3 heart rate (per min)

Variable Name:
CVDR3HR
SAS Label:
Recovery 3 heart rate (per min)
English Text:
Recovery 3 heart rate (per minute)
English Instructions:
Heart rate is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system. The treadmill test is usually completed after two minutes of Recovery. A third minute of Recovery will only be taken if the participant's heart rate is greater than 110 after 2 minutes of Recovery.
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
68 to 211 Range of Values 2145 2145
. Missing 2518 4663

CVDR3SY - Recovery 3 systolic BP (mm Hg)

Variable Name:
CVDR3SY
SAS Label:
Recovery 3 systolic BP (mm Hg)
English Text:
Recovery 3 systolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
59 to 233 Range of Values 2141 2141
. Missing 2522 4663

CVDR3DI - Recovery 3 diastolic BP (mm Hg)

Variable Name:
CVDR3DI
SAS Label:
Recovery 3 diastolic BP (mm Hg)
English Text:
Recovery 3 diastolic blood pressure (mm Hg)
English Instructions:
Blood pressure is taken by the automated blood pressure/heart rate monitor and captured directly into the computer system.
Target:
Both males and females 12 YEARS - 49 YEARS
Hard Edits:
0 to 300
Code or Value Value Description Count Cumulative Skip to Item
39 to 161 Range of Values 2141 2141
. Missing 2522 4663

CVDESVO2 - Estimated VO2max (ml/kg/min)

Variable Name:
CVDESVO2
SAS Label:
Estimated VO2max (ml/kg/min)
English Text:
Estimated maximal oxygen uptake (ml/kg/min).
English Instructions:
Maximal oxygen consumption (VO2max) is estimated by measuring the heart rates response to known levels of submaximal work. (See the CV Fitness Procedures Manual, Appendix G for more details on the calculation of the estimated VO2max)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
20.85 to 125.9 Range of Values 2809 2809
. Missing 1854 4663

CVDFITLV - Cardiovascular fitness level

Variable Name:
CVDFITLV
SAS Label:
Cardiovascular fitness level
English Text:
Cardiovascular fitness level
English Instructions:
The level of cardiovascular fitness is categorized based on gender-age specific cut-points of estimated VO2max. (See CV Fitness Procedures Manual, Appendix I for details.)
Target:
Both males and females 12 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Low 898 898
2 Moderate 1096 1994
3 High 815 2809
. Missing 1854 4663

Appendix A: Exclusion Criteria Classification for the NAHNES Cardiovascular Fitness Component

CVDEXCL1: Physical functioning limitations

Difficulties in walking for a quarter mile
Difficulties in walking up 10 steps without resting
Difficulties in walking from one room to another on the same level
Difficulties in standing up from an armless straight chair
Having back or neck problems
Having fractures or injuries in bone or joint
Having health problem that requires the use of special equipment, such as a cane or a wheelchair
Having a bone or joint problem that could be made worse by walking
Lose balance due to dizziness on a regular basis
Lose consciousness on a regular basis
Blind or with very poor eyesight
Diabetes affected eyes or had retinopathy
Having developmental problems
Having amputations of legs or feet other than toes
Weight exceeded equipment limitation (>350 lb)
Other specified physical limitations

CVDEXCL2: Cardiovascular conditions/symptoms

Had been diagnosed with congestive heart failure
Had been diagnosed with coronary heart disease
Had been diagnosed with angina
Had been diagnosed with myocardial infarction
Had been diagnosed with stroke
Self-reported heart problems
Self-reported stroke problems
Having a pacemaker or automatic defibrillator
Doctor had instructed to do only physical activity recommended by a doctor because of a heart condition
Feeling chest pain during physical activity
Had chest pain when not doing physical activity
Resting heart rate ≥ 100 beats/min
Resting systolic blood pressure ≥ 180 mmHg
Resting diastolic blood pressure ≥ 100 mmHg
Irregular heart beats: 3 or more dropped beats in 30 seconds

CVDEXCL3: Lung/breathing conditions/symptoms

Having to stop for breath when walking at own pace on level ground
Having to stop for breath after walking about 100 yards or after a few minutes on level ground
Having been awakened by trouble breathing or shortness of breath
Having to sleep on 2 or more pillows to help breathe
Self-reported lung or breathing problems
Had been diagnosed with emphysema

CVDEXCL4: Asthma symptoms

Had 12 or more attacks of wheezing or whistling during the past 12 months

CVDEXCL5: Medication exclusions

Anti Arrhythmics
Amiodarone (Cordarone)
Bretylium (Bretylol)
Cardioquin (Quinidine, Quinalan, Quinidex, Quinaglute, Quinora)
Disopyramide (Norpace)
Encainide (Enkaid)
Flecainide (Tambocor)
Lidocaine (Xylocaine, Xylocard)
Metoprolol Succinate (Toprol-XL)
Mexiletine (Mexitil)
Moricizine (Ethmozine)
Procainamide (Pronestyl, Procan SR)
Propafenone (Rhythmol)
Sotolol (Betapace)
Tocainide (Tonocard)
Beta Blockers
Acebutolol (Monitan, Sectral)
Atenolol (Tenormin)
Betaxolol (Kerlone)
Bisoprolol (Zebeta)
Carteolol (Cartrol)
Carvedilol (Coreg)
Esmolol (Brevibloc)
Labetalol (Normodyne)
Metoprolol tartrate (Betaloc, Lopressor)
Nadolol (Corgard)
Oxprenolol (Trasicor, Slow-Trasicor)
Penbutolol (Levatol)
Pindolol (Visken)
Propranolol (Detensol, Inderal)
Sotolol (Betapace, Sotocor)
Timolol (Blocadren)
Beta Blockers/Diuretic Combinations
Atenolol and Chlorthalidone (Tenorectic)
Bisoprolol and Hydrochlorothiazide (Ziac)
Metoprolol and Hydrochlorothiazide (Lopressor HCT)
Nadolol and Bendroflumethiazide (Corzide)
Propranolol and hydrochlorothiazide (Inderide)
Timolol and Hydrochlorothiazide (Timolide)
Calcium Channel-Blockers
Amlodipine (Norvasc)
Amlodipine and Atorvastatin (Caduet)
Amlodipine and Valsartan (Exforge)
Bepridil (Vascor)
Diltiazem (Cardizem, Ciatia, Dilacor, Diltia, Tiazac)
Felodipine (Plendil)
Isradipine (DynaCirc)
Mibefradil (Posicor)
Nicardipine (Cardene)
Nifedipine (Adalat, Nifedical, Procardia)
Nimodipine (Nimotop)
Nisoldipine (Sular)
Verapamil (Covera, Verelan, Calan, Isoptin)
CNS Stimulant
Ephedrine (Ma Huang)
Digitalis
Digoxin (Lanoxin)
Eye Drops/ Beta Blockers
Betaxolol Ophthalmic (Betoptic)
Timolol Ophthalmic (Timoptic)
Levobunolol Ophthalmic (betagan)
Metipranolol Ophthalmic (OptiPranolol)
Nitrates and Nitroglycerin
Erythrityl tetranitrate (Cardiwell)
Isosorbide dinitrate (Diltrate, Isordil, Nitrolin)
Isosorbide mononitrate (Monoket, Ismo)
Nitroglycerin, sustained release (Nitrong, Nitrocine, Nitroglyn)
Nitroglycerin, topical (Deponit, Minitran, Nitro-Dur, Nitrodisc, Nitrek, Nitrol, Nitro-Bid, Transderm Nitro, Nitroderm)
Nitroglycerin, translingual (Duotrate, Nitrostat, Nitrolingual spray, Isonate)
Nitroglycerin, transmucosal (Nitrogard)
Pentaerythritol tetranitrate (Cardilate, Peritrate)
Ephedra Based Weight Loss Medication
Dymetadrine Xtreme
Extreme Ripped Force
Metabolife
Metabolift
Phentermine
Pro-Ripped Ephedra
Ripped Fuel
Stacker
Ultra Ripped

CVDEXCL6: Other specified reasons

Had been hospitalized for specified reasons in the past 3 months (see the CV Fitness Procedures Manual, Appendix D for details)
Doctor recommended not to participate in sports or other activities due to a health condition
Other safety concerns specified by the participant
Other safety concerns identified by MEC physician or staff