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Abstract

DiMartino, V., Schmidt, G. (FACSM), Carpenter, T., Campo, G., William Paterson University, Wayne, NJ

Introduction: The purpose of this study was to analyze phosphate fatiguing and decrement (PD) patterns in university students completing a repeated sprint ability (RSA) test. Methods: Subjects were comprised of 7 women and 7 men (N=14) whose ages ranged from 23 to 41 years with a mean age of 25.7 ± 4.7 years. The average height of men was 1.79 ± 0.01 m and women was 1.59 ± 0.1 m. The average weight of men was 92.5 ± 14.7 kg, and women was 59.0 ± 8.9 kg. Subjects ran 8 trials of 20 meters with 30 second rest periods. Results: Men had faster times (3.62 ± 0.16 sec) than women (4.71 ± 0.82 sec) with an overall average of 4.17 ± 0.18 sec. An Independent t-test revealed no significant difference between genders (P = ns). Average phosphate decrement (PD) between men and women was 7.49 ± 4.35 % for men and 3.57 ± 4.64% for women. Discussion: RSA times for all participants suggest a high demand on physiological adaptations. Being that the RSA replicated high intensity interval training (HIIT), the physiological responses were different for all the participants based on their current conditioning levels. PD was correlated with the exertion of each subject and the consistency of the times of each trial. Conclusion: This study concluded that the RSA showed a PD among all participants. A larger PD would indicate more reliability on the lactic anaerobic system for energy.

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