Muscular activity of lower limb muscles associated with working on inclined surfaces.
Muscular activity of lower limb muscles associated with working on inclined surfaces.
复制标题
与在倾斜表面上工作相关的下肢肌肉的肌肉活动。
DOI：
10.1080/00140139.2014.968634
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发表时间：
2015
期刊：
影响因子：
2.4
通讯作者：
Bhattacharya,Amit
中科院分区：
文献类型：
--
作者：
Lu,Ming-Lun;Kincl,Laurel;Lowe,Brian;Succop,Paul;Bhattacharya,Amit
This study investigated the effects of visual cues, muscular fatigue, task performance and experience of working on inclined surfaces on activity of postural muscles in the lower limbs associated with maintaining balance on three inclined surfaces – 0°, 14° and 26°. Normalised electromyographic (NEMG) data were collected in 44 professional roofers bilaterally from the rectus femoris, biceps femoris, tibialii anterior and gastrocnemii medial muscle groups. The 50th and 95th percentile NEMG amplitudes were used as EMG variables. Results showed that inclination angle and task performance caused a significant increase in the NEMG amplitudes of all postural muscles. Visual cues were significantly associated with a decrease in the 95th percentile EMG amplitude for the right gastrocnemius medial and tibialis anterior. Fatigue was related to a significant decrease in the NEMG amplitude for the rectus femoris. Experience of working on inclined surfaces did not have a significant effect on the NEMG amplitude.
