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Abstract
The purpose of this study was to compare the acceleration and surface electromyography (EMG) of the lower extremity and trunk muscles during straight-leg raising (SLR) in patients with incomplete cervical cord injury according to their levels of walking independence. Twenty-four patients were measured acceleration and EMG during SLR held for 10 s. Data were analyzed separately for the dominant and nondominant sides and compared between the nonindependent (NI) and independent (ID) groups based on their levels of walking independence. Frequency analysis of the EMG showed that the high-frequency (HF) band of the contralateral biceps femoris (BF) in the ID group and bands below the medium-frequency (MF) of the BF and the HF and MF bands of the rectus abdominis in the NI group were significantly higher during dominant and nondominant SLR. During the nondominant SLR, the low-frequency band of the internal oblique and the MF band of the external oblique were significantly higher in the NI group. The ID group mobilized muscle fiber type 2 of the BF, whereas the NI group mobilized type 1 of the BF and types 2 and 1 of the trunk muscles to stabilize the pelvis. This result was more pronounced during the nondominant SLR.
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Details
1 Japanese Red Cross Kobe Hospital, Department of Rehabilitation, Kobe, Japan (GRID:grid.459715.b); Kobe University, Graduate School of System Informatics, Kobe, Japan (GRID:grid.31432.37) (ISNI:0000 0001 1092 3077)
2 Kobe University, Graduate School of Science Technology and Innovation, Kobe, Japan (GRID:grid.31432.37) (ISNI:0000 0001 1092 3077)
3 Japanese Red Cross Kobe Hospital, Department of Rehabilitation, Kobe, Japan (GRID:grid.459715.b)
4 Shijonawate Gakuen University Faculty of Rehabilitation, Osaka, Japan (GRID:grid.449163.d) (ISNI:0000 0004 5944 5709)
5 Kobe University Graduate School of Health Sciences, Kobe, Japan (GRID:grid.31432.37) (ISNI:0000 0001 1092 3077)
6 Kobe University, Graduate School of Science Technology and Innovation, Kobe, Japan (GRID:grid.31432.37) (ISNI:0000 0001 1092 3077); Osaka Heat Cool Inc., Osaka, Japan (GRID:grid.31432.37)