Immediate Effects of the Downhill Treadmill Walking Exercise on Thoracic Angle and Thoracic Extensor Muscle Activity in Subjects With Thoracic Kyphosis

Jun-hyeok Lee, Hye-seon Jeon, Ji-hyun Kim, Joo-hee Park, Hyeo-bin Yoon
2019 Physical Therapy Korea  
In previous studies, changes in postural alignment were found when the slope was changed during walking. Downhill walking straightens the trunk by shifting the line of gravity backward. Objects: This study investigated the effect of the downhill treadmill walking exercise (DTWE) on thoracic angle and thoracic erector spinae (TES) activation in subjects with thoracic kyphosis. Methods: A total of 20 subjects with thoracic kyphosis were recruited for this study. All the subjects performed the
more » ... for 30 minutes. A surface EMG and 3D motion capture system were used to measure TES activation and thoracic angle before and after the DTWE. Paired t-tests were used to confirm the effect of the DTWE (p<.05). Results: Both the thoracic angle and TES activation had significantly increased after the DTWE compared to the baseline (p<.05). An increase in the thoracic angle indicates a decrease in kyphosis. Conclusion: The DTWE is effective for thoracic kyphosis patients as it decreases their kyphotic posture and increases the TES activation. Future longitudinal studies are required to investigate the long-term effects of the DTWE.
doi:10.12674/ptk.2019.26.2.001 fatcat:hmi6hcp52fbybpa4kcj7pvy2ti