Impact of concurrent inspiratory muscle and aerobic exercise training on pulmonary function and cardiopulmonary responses.

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doi:2012.21.3.373

Exerc Sci > Volume 21(3); 2012 > Article

Exercise Science 2012;21(3): 373-384. doi: https://doi.org/10.15857/ksep.2012.21.3.373

흡기근육 훈련과 유산소운동의 동시적용이 심폐반응과 폐기능에 미치는 영향

정현진, 이대택

국민대학교

Impact of concurrent inspiratory muscle and aerobic exercise training on pulmonary function and cardiopulmonary responses.

ABSTRACT

The effects of inspiratory muscle training in conjunction with aerobic exercise on inspiratory muscle strength, pulmonary function, and maximal oxygen uptake(VO2max) were examined. Twenty four healthy collegiate men were divided into three groups; respiratory muscle training group(RTG; n=8), running exercise group(REG; n=8), and both respiratory muscle training and running group(BTG; n=8). Their pulmonary function, maximal inspiratory pressures(PImax), and VO2max were assessed before and after intervention. RTG underwent inspiratory muscle training(IMT) with load set to 50 % of PImax, 30 times per session, twice a day, 4 days a week REG ran on a treadmill at 70-75 % of VO2max for 30 min a day, 4 days a week. BTG participated both IMT and the running exercise. Participant's anthropometric parameters and pulmonary function were not changed. VO2max increased by 6.1±3.3 %, 5.9±6.6 %, and 10.0±8.3 % in RTG, REG, and BTG, respectively(p< .05), and PImax also increased by 21.7±14.3 %, 19.7±12.0 %, and 27.0±12.1 % in RTG, REG, and BTG, respectively, but no group differences were found. Based on the study, although statistically insignificant, BTG showed the biggest increase of VO2max and PImax indicating a possible synergic effect of inspiratory muscle training and aerobic exercise on respiratory responses.

Key words: Inspiratory muscle training, Aerobic exercise, Pulmonary function, Maximal oxygen uptake, Inspiratory pressure