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ISSN : 2092-8475(Print)
ISSN : (Online)
Journal of International Academy of Physical Therapy Research Vol.11 No.2 pp.2065-2070

Effects of Seated Exercise of Thoracic and Abdominal Muscles on Upper Extremity Function and Trunk Muscles Activity in Patients with Chronic Stroke

Shinjun Parka,Sangduk Kimb
aDepartment of Physical Therapy, Gangdong University, Eumseong, Republic of Korea
bDepartment of Nursing, Gangdong University, Eumseong, Republic of Korea
Address for correspondence Sangduk Kim, Prof. Department of Nursing, Gangdong University, 278, Daehak-gil, Danpyeong-ri, Gamgok-Myeon, Eumseong-gun, Chungcheongbuk-do, Republic of Korea


Background: Weakness of the abdominal and mid thoracic muscles the lead to thoracic kyphosis of stroke patients. The trunk muscles activity of stroke patients is significantly related to upper extremity.
Objectives: To investigate the effect of seated exercise of thoracic and abdominal muscles on upper extremity function and trunk muscles activity in stroke patients.
Design: One-group pretest-posttest design.
Methods: A total of 27 stroke patients were recruited. All stroke patient were given seated abdominal exercise (posterior pelvic tilt exercises) and thoracic exercise (postural-correction exercise). All exercises were conducted for 30 minutes, three times a week for four weeks. The manual function test (MFT) and electromyography (EMG) were measured, and EMG electrodes were attached to thoracic paraspinal muscles and lower rectus abdominal muscles. EMG signal is expressed as %RVC (reference voluntary contraction).
Results: Experimental group showed significant increases in abdominal muscles, paraspinal muscles activity and MFT total score, items of arm motion (forward elevation of the upper extremity, lateral elevation of the upper extremity, touch the occiput with the palm) in MFT after four weeks.
Conclusion: These results suggest that, in stroke patients, seated exercise of thoracic and abdominal muscles contribute to improve trunk muscles activity and upper extremity function in stroke patients.