Changes in training posture induce changes in the chest wall movement and respiratory muscle activation during respiratory muscle training

• Published in: Journal of exercise rehabilitation 2018, 14(5), 57, pp.771-777
• Main Authors: Jung, Ju-Hyeon, Kim, Nan-Soo
• Format: Article
• Language: English
• Subjects: Original; 심리과학
• ISSN: 2288-176X; 2288-1778
• DOI: 10.12965/jer.1836366.183

Postural changes induce changes in chest wall kinematics and eventu-ally pulmonary function, and affect chest wall shape and chest motion. This study aimed to examine the effects of postural change on changes in the chest wall during respiratory muscle training. Using a repeated measures design, this study followed 13 healthy adults (13 men; mean age, 23.73 years). All participants performed four postures (neutral, full trunk rotation, half-range trunk rotation, and lateral ribcage shift pos-tures) during respiratory muscle training. The chest wall movement during the four postures was measured using a three-dimensional mo-tion-analysis system during respiratory muscle training. Surface elec-tromyography data were collected from the diaphragm and sternoclei-domastoid muscles, and the asymmetric ratio of muscle activation was calculated based on the collected data. The chest wall movements of the upper costal and middle costal region were greater in the neutral posture than in the full rotation, half rotation, and lateral ribcage shift postures (P