Purpose: The purpose of the study was to investigate the influence of respiratory resistance fatigue to endurance ability and YO-YO endurance test. Methods: Ten university track and field athletics, nonsmoking males were recruited to participate following tests by counter-balanced order. Every subject have to perform respiratory muscle fatigue (RMF) and none respiratory muscle fatigue (NRMF) (age 20±1.10 years, height 174.9±5.17 cm, weight 65.5±4.61 kg), examine their maximum inspiratory pressure (PImax), maximum expiratory pressure (PE(subscript max)), forced expiratory volume in 1 second (FEV1.0), forced vital capacity (FVC) and the value of FEV1.0/FVC within acute and 15 min following task failure and YO-YO test. Maximum heart rate (HR(subscript max)) and lactic acid were separate examine within pro-exercise acute and 5min later. A repeated measures analysis of two-way ANOVA was used to evaluate treatment (RMF and NRMF) and trail on each of the FEV1.0, FVC, FEV1.0/ FVC%, PI(subscript max), PE(subscript max) and lactic acid. RMF and NRMF were compared with the t-test in order to assess differences in HR(subscript max) and running distance. Results: FEV1.0/FVC, PImax, PEmax and lactic acid were no significantly difference in RMF and NRMF within immediately and 15 min following task failure, but FVC and FEV1.0 were significantly. The HR(subscript max) (190.0±6.83 vs. 195.4±5.94 bpm) and running distance (1580±226.86 vs. 1760±298.14 m) in RMF was significantly impair in NRMF. Conclusions: The findings in this study conclude that respiratory muscle fatigue will affect the lung function of FVC and FEV1.0, and respiratory muscle fatigue may impair the average running distance covered in YO-YO endurance test.
Purpose: The purpose of the study was to investigate the influence of respiratory resistance fatigue to endurance ability and YO-YO endurance test. Methods: Ten university track and field athletics, nonsmoking males were recruited to participate following tests by counter-balanced order. Every subject have to perform respiratory muscle fatigue (RMF) and none respiratory muscle fatigue (NRMF) (age 20±1.10 years, height 174.9±5.17 cm, weight 65.5±4.61 kg), examine their maximum inspiratory pressure (PImax), maximum expiratory pressure (PE(subscript max)), forced expiratory volume in 1 second (FEV1.0), forced vital capacity (FVC) and the value of FEV1.0/FVC within acute and 15 min following task failure and YO-YO test. Maximum heart rate (HR(subscript max)) and lactic acid were separate examine within pro-exercise acute and 5min later. A repeated measures analysis of two-way ANOVA was used to evaluate treatment (RMF and NRMF) and trail on each of the FEV1.0, FVC, FEV1.0/ FVC%, PI(subscript max), PE(subscript max) and lactic acid. RMF and NRMF were compared with the t-test in order to assess differences in HR(subscript max) and running distance. Results: FEV1.0/FVC, PImax, PEmax and lactic acid were no significantly difference in RMF and NRMF within immediately and 15 min following task failure, but FVC and FEV1.0 were significantly. The HR(subscript max) (190.0±6.83 vs. 195.4±5.94 bpm) and running distance (1580±226.86 vs. 1760±298.14 m) in RMF was significantly impair in NRMF. Conclusions: The findings in this study conclude that respiratory muscle fatigue will affect the lung function of FVC and FEV1.0, and respiratory muscle fatigue may impair the average running distance covered in YO-YO endurance test.