Inspiratory muscle training improves inspiratory muscle strength and exercise performance in obese college students

ZHU Zheng; FU Changxi; MA Wenchao

doi:10.16835/j.cnki.1000-9817.2021.06.009

Volume 42 Issue 6

Jun. 2021

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ZHU Zheng, FU Changxi, MA Wenchao. Inspiratory muscle training improves inspiratory muscle strength and exercise performance in obese college students[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(6): 838-841. doi: 10.16835/j.cnki.1000-9817.2021.06.009

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ZHU Zheng, FU Changxi, MA Wenchao. Inspiratory muscle training improves inspiratory muscle strength and exercise performance in obese college students[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(6): 838-841. doi: 10.16835/j.cnki.1000-9817.2021.06.009

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Inspiratory muscle training improves inspiratory muscle strength and exercise performance in obese college students

doi: 10.16835/j.cnki.1000-9817.2021.06.009

Department of Physical Education, Xuzhou Institute of Technology, Xuzhou(221018), Jiangsu Province, China

Received Date: 2020-12-24
Rev Recd Date: 2021-02-23

Available Online: 2021-06-22

Publish Date: 2021-06-25

Abstract

Abstract

Objective To observe the effects of 8-week inspiratory muscle training on lung function, respiratory muscle strength, exercise performance, body composition and lipid metabolism in obese college students, and to provide a reference for optimizing rehabilitation plan for obese patients. Methods A total of 58 obese college students were randomly divided into experimental group(n=28) and control group(n=30). The experimental group received inspiratory muscle training with 50% of maximal inspiratory pressure(P_Imax), 3 times a week for a total of 8 weeks. Except for the intensity set to 5% P_Imax, other parameters in the control group were the same as those in the experimental group. Lung function, respiratory muscle strength, exercise performance, body composition and blood lipids were measured before and after intervention. Results The completion rates of the training program (adherence) in the experimental group and the control group were 98.0% and 99.2%, respectively. No serious adverse events occurred during intervention. After intervention, P_Imax and 6-minute walk test (6MWT) distance increased (t=-7.44, -4.11, P < 0.05), ratings of perceived exertion (RPE) and heart rate decreased after 6MWT (t=2.13, 2.63, P < 0.05), but there was no significant difference in lung function, body composition and blood lipid level in the experimental group (P>0.05). There was no significant change in the above indexes in the control group (P>0.05). Conclusion Eight-week inspiratory muscle training can effectively improve inspiratory muscle strength and exercise performance in obese college students, whereas it had no effects on expiratory muscle strength, lung function, body composition and blood lipid profiles.
- Obesity,
- Lung,
- Motor activity,
- Randomized controlled trial,
- Health promotion,
- Students

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References

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