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Energy system contribution during 1500m-running in trained and untrained male college students
Author
Viknesvaran Veeramuthu
Supervisor
Govindasamy Balasekaran
Abstract
The primary purpose of this study was to ascertain the differences in energy system contribution between untrained and endurance-trained male college students, during a 1500m- treadmill run. The secondary purpose was then to determine a set of independent physiological variables such as VO2 max , percentage body fat and lean mass that could significantly account for performance variance in 1500m treadmill running performance. 5 untrained male college students and 5 endurance - trained (sub-elite) male college students participated in this study. (Mean V02 rnax [ml.kg.min-1] ± SD: 45.1 ± 5.0 and 58.3 ± 2.2, p < 0.05, respectively). The relative aerobic and anaerobic energy system contribution was calculated using the maximally accumulated oxygen deficit (MAOD) method. Multiple regression analyses were carried out to determine a set of independent physiological predictor variables of 1500m- treadmill run performance. The mean relative contributions of the aerobic energy system during 1500m-treadmill running for the untrained and endurance- trained sample subjects were 65.4 ± 7.0% and 75.7 ± 1.5% respectively (p < 0.05). In addition, V02 max and percentage body fat were found to significantly account for performance variance (p < 0.05) in the 1500m treadmill running time. The aerobic energy system was found to contribute considerably to the 1500m run and predominated as the primary source of energy from as early as the 40Ih second of the run. Results suggest that an earlier crossover to a predominantly aerobic energy contributions results in better performance in 1500m- treadmill running performance.
Date Issued
2003
Call Number
QP176 Vik
Date Submitted
2003