Gething A D, Passfield L, Davies B
Field of Health and Exercise Science, School of Applied Sciences, University of Glamorgan, Pontypridd, CF37 1DL, UK.
Eur J Appl Physiol. 2004 Jun;92(1-2):50-5. doi: 10.1007/s00421-004-1044-2. Epub 2004 Feb 21.
This study investigated the relationship between the intensity of an inspiratory muscle training programme and its effect on respiratory muscle strength, exercising heart rate, and ratings of perceived exertion. A total of 66 subjects were randomly assigned to one of three groups. One group trained at 100% of maximum inspiratory pressure (MIP) for 6 weeks (MAX, n=22). A second group performed 6 weeks of inspiratory muscle training at 80% of MIP (SUB, n=21) and a third control group received no inspiratory training (CON, n=23). Both the MAX and SUB training groups improved MIP relative to the control group [32 (19) cmH(2)O, P=0.01; 37 (25) cmH(2)O, P=0.001, respectively]. A significant decrease in heart rate [-6 (9) beats min(-1), P=0.02] and rating of perceived exertion [-0.5 (1.4), P=0.04] was observed for the MAX group only. It is concluded that 6 weeks of both MAX and SUB training were sufficient to improve inspiratory muscle strength. However, exercising heart rate and perceived exertion decreased with MAX training only.
本研究调查了吸气肌训练计划的强度与其对呼吸肌力量、运动心率和主观用力感觉评分的影响之间的关系。总共66名受试者被随机分为三组。一组以最大吸气压（MIP）的100%进行训练，为期6周（MAX组，n = 22）。第二组以MIP的80%进行6周的吸气肌训练（SUB组，n = 21），第三组为对照组，不接受吸气训练（CON组，n = 23）。与对照组相比，MAX组和SUB组的MIP均有所提高[分别为32（19）cmH₂O，P = 0.01；37（25）cmH₂O，P = 0.001]。仅MAX组的心率显著降低[-6（9）次/分钟，P = 0.02]，主观用力感觉评分也显著降低[-0.5（1.4），P = 0.04]。研究得出结论，MAX组和SUB组进行6周的训练均足以提高吸气肌力量。然而，只有MAX组训练时运动心率和主观用力感觉降低。
