Influence of sitting posture on tidal volume, respiratory rate, and upper trapezius activity during quiet breathing in patients with chronic obstructive pulmonary disease
1Department of Physical Therapy, College of Natural Science, 20, Hoseo-ro 79gil, Baebang-eup, Asan, Chungnam 336-795, South Korea.
2Department of Physical Therapy, Vision University, College of Jeonju, 235 Cheonjam-ro, Wansan-gu, Jeonju-si 560-760, South Korea.
3Department of Physical Therapy, College of Health Science, Yonsei University, Institute of Health Science, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon-do 220-710, South Korea.
Email: [email protected]; [email protected]
