| Summary: | 碩士 === 國立臺北護理健康大學 === 運動保健研究所 === 103 === Obesity can cause lung problems in the work of breathing and increase airway resistance. All these problems affect insufficient exercise tolerance, exertional dyspnea or fatigue, and obese people often meet obstacles in daily activities. The present study is to investigate the involvement of inspiratory muscle training on lung function in obese people, body composition, lipid and physical activity. In the northern part of Taiwan, the staff of a regional hospital, 28 subjects with BMI higher than 27%, using purposive sampling, are divided into experimental group(EXP) and the placebo group (PLA). Two groups are accepted twice before and after pulmonary function, inspiratory muscle pressure testing, lipid and physical activity testing(6-minute walk test, 6MWT; modified incremental shuttle walking test, MISWT). The EXP and PLA by performing two sets of 30 breaths at 55% and 10% maximum inspiratory mouth pressure (PImax), for three days a week for six weeks of training. The data were obtained and analyzed with the variation of two-factor(Two-way analysis of variance, ANOVA). The results: After six weeks of training intervention, the two groups are no significant differences in pulmonary function testing, but in EXP PImax more than PLA (138.8± 15.2 vs 100.8±15.2 cmH2O, p < .05). In the body composition, lipid and BMI are no significant differences. On the other hand, in the part of physical activity, the EXP in 6MWT and MISWT are higher than PLA (6MWD，688.3±65.3 vs 636.3±37.8 m；MISWT，12.2±0.91 vs 0.3±0.5 level, p < .05). Conclusion: These results indicate that the inspiratory muscle training can improve the PImax, 6MWT and MISWT, however, might not improve pulmonary function and body fat.
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