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Maximal exercise and residual lung volume: considerations for body composition analysis.
Canadian Journal of Applied Sport Sciences. Journal Canadien Des Sciences Appliquees Au Sport
|September 1, 1983
Summary
Maximal treadmill exercise significantly increased residual lung volume and total lung capacity in female runners. These pulmonary function changes can impact body composition predictions, suggesting standardized testing.
Area of Science:
- Exercise Physiology
- Pulmonary Function Testing
Background:
- Athletes often undergo physiological assessments to understand performance.
- Body composition is frequently measured using methods sensitive to lung volume changes.
Purpose of the Study:
- To evaluate the impact of maximal exercise on pulmonary function in female cross country runners.
- To assess the effect of exercise-induced lung volume changes on body composition measurements.
Main Methods:
- Pulmonary function tests were conducted before and after maximal treadmill exercise in 11 female runners.
- Hydrostatic weighing was performed post-exercise to determine body composition.
Main Results:
- Significant increases were observed in residual lung volume (20.6%) and total lung capacity (3.4%) post-exercise.
- These pulmonary function changes were not correlated with exercise intensity.
- The increase in residual lung volume introduced a mean error of 12.1% in body composition prediction.
Conclusions:
- Maximal exercise transiently alters lung volumes in female runners.
- The observed changes in residual lung volume can introduce significant error in body composition assessments.
- Standardized testing protocols are recommended to mitigate variability in physiological measurements.