Journal
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
Volume 43, Issue 11, Pages 2024-2030Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1249/MSS.0b013e31821d3f6f
Keywords
CARDIORESPIRATORY FITNESS; PEAK OXYGEN UPTAKE; MULTIPLE REGRESSION; POPULATION SAMPLE
Categories
Funding
- K. G. Jebsen Foundation
- Norwegian Council on Cardiovascular Disease
- Norwegian Research Council
- Central Norway Regional Health Authority
- Norwegian University of Science and Technology
- Swedish Council of Working Life and Social Research
- Liaison Committee
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NES, B. M., I. JANSZKY, L. J. VATTEN, T. I. L. NILSEN, S. T. ASPENES, U. WISLOFF. Estimating (V) over dotO(2peak) from a Nonexercise Prediction Model: The HUNT Study, Norway. Med. Sci. Sports Exerc., Vol. 43, No. 11, pp. 2024-2030, 2011. Purpose: Cardiorespiratory fitness is suggested to be an important marker of cardiovascular risk but is rarely evaluated in health care settings. In the present study, directly measured peak oxygen uptake ((V) over dotO(2peak)) from a diverse population of 4637 healthy participants were used to develop and cross-validate a new nonexercise regression model of cardiorespiratory fitness for men and women. Methods and Results: Multi-variable regression analysis was used to develop a nonexercise model of cardiorespiratory fitness for men and women separately with (V) over dotO(2peak) as the outcome. In the final models, 2067 men (mean age = 48.8 yr) and 2193 women (mean age = 47.9 yr) were included, respectively. Cross-validation of the models was done by standard data splitting procedures with evaluation of constant error and total error of a model developed on one sample and cross-validated on another sample. Age, waist circumference, leisure time physical activity, and resting HR, successively, were the most potent predictors of (V) over dotO(2peak) for both men and women. Together, 61% and 56% of variance in (V) over dotO(2peak), for men and women, respectively, were explained by the full models. SEE was 5.70 and 5.14 for the models including men and women, respectively. Conclusions: The nonexercise regression model developed in the present study was fairly accurate in predicting (V) over dotO(2peak) in this healthy population of men and women. The model might be generalized to other healthy populations and might be a valid tool for a rough assessment of cardiorespiratory fitness in an outpatient setting.
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