Four weeks of respiratory muscle training improves intermittent recovery performance but not pulmonary functions and maximum oxygen consumption (vo2 max) capacity in young soccer players

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2010
Özgider, Can
The purpose of this study was to determine the effects of 4 week respiratory muscle training (RMT) on intermittent recovery performance, pulmonary functions and maximum oxygen consumption capacity (Vo2max) of young soccer players. Eighteen young soccer player who were playing in the Turkey PAF League (league for candidate professional soccer players) from Hacettepe Sports Club with a mean age of 18.4 ± 0.8 years (ranging from 17 to 19 years) and 8.5 ± 0.7 (ranging from 7 to 9 years) years experience in soccer participated. Players’ weekly metabolic equivalent score (MET) was 120. Their maximum oxygen consumption (Vo2max) on a treadmill, pulmonary function with a spirometer, and recovery performance with a yo-yo intermittent recovery test level 2 were measured and then they were randomly assigned into two groups as either RMT (n = 9) or control (n = 9). The RMT group continued both their regular training and RMT treatment with a commercially available powerlung sport respiratory muscle trainer (Powerlung Inc., TX, and USA) for 4 weeks. The control group only continued with their regular training. After completing 4 week RMT implementation (composed of 30 sets of inhalation, two times a day, 5 days of the week), the same tests were performed in order to see the v effects of 4 week RMT treatment on selected parameters mentioned above. Findings of this study indicated that 4 week of RMT treatment significantly improved (% 39) yo-yo intermittent recovery test level 2 performances of the RMT group from pre to post test measurements when compared to subjects in the control group. However, there were no significant improvements in both RMT and control group’s Vo2max capacity, Vital capacity (VC), Forced vital capacity (FVC), forced expiratory flow (FEV1.0) and Peak expiratory flow performances (PEF). As a conclusion, 4 week of RMT implementation improves the intermittent recovery performance of young soccer players.