The Effect of a Competitive Collegiate Football Season on Power Performance and Muscle Oxygen Recovery Kinetics

• Autores: Jay R. Hoffman, Joohee Im, Jie Kang, Nicholas A. Ratamess, Shoko Nioka, Kenneth W. Rundell, Ryotaro Kime, Joshua J. Cooper, Britton Chance
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 19, Nº. 3, 2005, págs. 509-513
• Idioma: inglés
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• Dialnet Métricas: 1 Cita
• Resumen

  • Ten intercollegiate football players were tested within 3 days prior to (T1) and the day following the end (T2) of football preseason training camp and during weeks 7 (T3) and 11 (T4) of the competitive season. During each testing session, subjects performed a 30-second Wingate anaerobic power test. Near-infrared continuous wave spectroscopy was used to measure muscle deoxygenation during exercise.

    No changes in any power performance measures were seen during the competitive football season. A significant (p < 0.05) decrease in the extent of deoxygenation during exercise was observed between T2 (72.6 ± 19.4%) and T4 (50.2 ± 14.2%). A 30 and 29% difference (p < 0.05) in the onset of reoxygenation was observed between T1 and T3 and T4, respectively. A 51% decrease (p < 0.05) in halftime recovery was observed between T2 and T3. Results indicate that the extent of muscle deoxygenation is reduced during high-intensity exercise and that muscle oxygen recovery kinetics improves over the duration of a competitive season of football.