Abstract
The purpose of this study was to develop prediction models based on an
incremental treadmill test to volitional exhaustion utilizing the modified Heck
protocol. A total of 598 professional and youth athletes participating in
different sports were recruited for this study. Specifically, the study enrolled
professional male soccer players (n=380), professional male futsal
players (n=24), elite male basketball players (n=27),
professional male soccer referees (n=50), elite female soccer players
(n=19), youth male basketball players (13–14 yrs
n=15, 15–17 yrs n=20) and youth male soccer
players (15 yrs n=28, 16–17 yrs n=35).
Anthropometric measurements included stature, body mass, and body fat.
Furthermore, all participants performed incremental cardiopulmonary exercise
testing on a treadmill using the modified Heck protocol. Through multiple
regression analysis, a separate prediction model was developed for each of the
athletic populations. Results demonstrated that a significant (p=0.001)
proportion of the variation observed in VO2max was explained by the
variation in running time. The generated VO2max regression equations
would allow athletes and coaches to predict VO2max in a relatively
short time without the need for expensive and sophisticated equipment. To our
knowledge, this is the first study that provides regression models for different
athletic populations using the modified Heck protocol.
Key words
VO
2max - soccer - futsal - basketball