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High-intensity interval training (HIIT) versus traditional endurance training (TET): effects on aerobic power and respiratory system adaptations in female inline speed skaters
Poster Presentation
Paper ID : 1471-11THCONF
Authors
1Department of Exercise Physiology, Faculty of Physical Education & Sport Science, Islamic Azad University, Central Tehran Branch, Tehran, Iran
2Department of Exercise Physiology, Faculty of Physical Education & Sport Science, Islamic Azad University, Central Tehran Branch, Tehran, Iran.
3Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
4Department of Physical Education and Sports Sciences, Tarbiat Modares University, Tehran, Iran.
Abstract
Introduction: Various forms of high-intensity interval training (HIIT) programs have been used with athletes from a wide range of sports to examine the effects on physiological and performance adaptations. No previous study has compared the effects of different forms of HIIT on physiological adaptations in female inline speed skaters. The aims of the present study was to evaluate and compare the effects of high-intensity interval training (HIIT) varying in exercise intensities to continuous endurance training (CET) on aerobic power and respiratory system adaptations in female inline speed skaters.
Methodology: Participants were randomly assigned to one of 3 HIIT groups: 6, 8, 10 (repetitions/session from 1st to 3rd week respectively) × 60 seconds (s) at the running speed associated with V̇O2max (100% vV̇O2max) (H100, N = 7), 115%vV̇O2max (H115, N = 7), and 130% vV̇O2max (H130, N = 7), 1:3 work to recovery ratio; and/or CET group (N = 7): 60-minute running at 75% vV̇O2max three sessions per week. Significant improvements (P < 0.05) following HIIT were found in: V̇O2max (H100 = +7.6%, H115 = +6.1%), ventilation at V̇O2max (H115 = +4.9%), V̇O2 at ventilator threshold (VT) (H115 = +10.7%, H130 = +7.2%), tidal volume at VT (H115 = + 15.6%, H130 = + 26.4%), and O2 pulse at VT (H100 = +16.2%, H115 = +7.2%).
Results: The results indicated that HIIT is an effective stimulus to improve ventilator threshold through decrease in anaerobic metabolism and increase in aerobic metabolism (increased O2 pulse).
Discussion: Present findings suggested that prescribed HIIT is an effective method to improve aerobic power and respiratory system adaptations in short period of time.
Methodology: Participants were randomly assigned to one of 3 HIIT groups: 6, 8, 10 (repetitions/session from 1st to 3rd week respectively) × 60 seconds (s) at the running speed associated with V̇O2max (100% vV̇O2max) (H100, N = 7), 115%vV̇O2max (H115, N = 7), and 130% vV̇O2max (H130, N = 7), 1:3 work to recovery ratio; and/or CET group (N = 7): 60-minute running at 75% vV̇O2max three sessions per week. Significant improvements (P < 0.05) following HIIT were found in: V̇O2max (H100 = +7.6%, H115 = +6.1%), ventilation at V̇O2max (H115 = +4.9%), V̇O2 at ventilator threshold (VT) (H115 = +10.7%, H130 = +7.2%), tidal volume at VT (H115 = + 15.6%, H130 = + 26.4%), and O2 pulse at VT (H100 = +16.2%, H115 = +7.2%).
Results: The results indicated that HIIT is an effective stimulus to improve ventilator threshold through decrease in anaerobic metabolism and increase in aerobic metabolism (increased O2 pulse).
Discussion: Present findings suggested that prescribed HIIT is an effective method to improve aerobic power and respiratory system adaptations in short period of time.
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