Health and Medical treatment Studies
Online ISSN : 2435-3930
Print ISSN : 1882-3637
ISSN-L : 1882-3637
The relationship between the exercise tolerance and trunk posture
Batlkham DambadarjaaDaisuke UgaTomoaki SugayaRie NakazawaMasaaki Sakamoto
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2019 Volume 10 Issue 1 Pages 1-8

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Abstract
[Purpose] This study was conducted to determine the relationship between the exercise tolerance and trunk posture. [Subjects and Methods] Twelve healthy males participated in the study. Exercise tolerance was measured using a cycle ergometer cardiopulmonary exercise tests in two postures, upright and slumped. Respiratory function tests and maximum inspiratory and expiratory pressure (MIP and MEP) were measured in each posture. [Results] The forced vital capacity and forced expiratory volume in one second decreased significantly in the slumped posture. The MIP and MEP did not vary significantly. The V・O2 max and anaerobic threshold (AT) point were not different significantly, but the duration of exercise was shorter in the slumped posture. The Borg scale (used to quantify the perception of dyspnea and lower limbs muscle fatigue, at rest and during exercise) and respiratory rate were increased significantly with the slumped posture. [Conclusion] Postural changes were noted to affect the duration of exercise, but the V・O2 max and AT point remained unaffected in healthy people. Modification of posture might help prolong the duration of exercise, by improving respiratory function and by reducing the unnecessary muscle activity.
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© 2019 The Japanese Academy for Health and Medical treatment
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