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Prediction of functional aerobic capacity without exercise testing
- Source :
- Medicine and science in sports and exercise. 22(6)
- Publication Year :
- 1990
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1990.
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Abstract
- The purpose of this study was to develop functional aerobic capacity prediction models without using exercise tests (N-Ex) and to compare the accuracy with Astrand single-stage submaximal prediction methods. The data of 2,009 subjects (9.7% female) were randomly divided into validation (N = 1,543) and cross-validation (N = 466) samples. The validation sample was used to develop two N-Ex models to estimate VO2peak. Gender, age, body composition, and self-report activity were used to develop two N-Ex prediction models. One model estimated percent fat from skinfolds (N-Ex %fat) and the other used body mass index (N-Ex BMI) to represent body composition. The multiple correlations for the developed models were R = 0.81 (SE = 5.3 ml.kg-1.min-1) and R = 0.78 (SE = 5.6 ml.kg-1.min-1). This accuracy was confirmed when applied to the cross-validation sample. The N-Ex models were more accurate than what was obtained from VO2peak estimated from the Astrand prediction models. The SEs of the Astrand models ranged from 5.5-9.7 ml.kg-1.min-1. The N-Ex models were cross-validated on 59 men on hypertensive medication and 71 men who were found to have a positive exercise ECG. The SEs of the N-Ex models ranged from 4.6-5.4 ml.kg-1.min-1 with these subjects.(ABSTRACT TRUNCATED AT 250 WORDS).
- Subjects :
- Life Sciences (General)
Subjects
Details
- Language :
- English
- ISSN :
- 01959131
- Volume :
- 22
- Issue :
- 6
- Database :
- NASA Technical Reports
- Journal :
- Medicine and science in sports and exercise
- Publication Type :
- Report
- Accession number :
- edsnas.20050017669
- Document Type :
- Report