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Physiological predictors of short-course triathlon performance
1School of Physical Education, University of Victoria, B.C., Canada.
Medicine and Science in Sports and Exercise
|July 1, 1993
Summary
Physiological factors like maximal oxygen uptake (VO2max) and ventilatory threshold (VT) significantly impact short-course triathlon performance, especially in female athletes. Running velocity at VT is a key predictor for both genders.
Area of Science:
- Sports Science
- Exercise Physiology
- Triathlon Performance Analysis
Background:
- Understanding physiological determinants of athletic performance is crucial for training optimization.
- Triathlon involves three distinct disciplines, each with unique physiological demands.
Purpose of the Study:
- To investigate the relationship between selected physiological variables and short-course triathlon performance.
- To identify key physiological predictors of swimming, cycling, and running components, as well as overall performance.
Main Methods:
- Physiological testing including VO2max and ventilatory threshold (VT) measurements.
- Strength assessment using an isokinetic dynamometer.
- Correlation and regression analyses to relate physiological data to race times.
Main Results:
- Relative swim VO2max and leg strength were significant predictors for female swimmers.
- Running velocity at VT was a key predictor for running and overall performance in both genders.
- No physiological variables significantly predicted cycling performance.
Conclusions:
- Physiological variables in swimming and running are important for short-course triathlon success.
- Gender-based differences in physiological predictors suggest varied training needs.
- Velocity at run VT is a critical performance indicator for male triathletes.