Details:

Alternative Title:
Ergonomics
Publisher's site:
http://dx.doi.org/10.1080/00140139.2014.968634
Personal Author:
Lu, Ming-Lun ; Kincl, Laurel ; Lowe, Brian ; Succop, Paul ; Bhattacharya, Amit
Lu, Ming-Lun ; Kincl, Laurel ; Lowe, Brian ; Succop, Paul ; Bhattacharya, Amit Less -
Description:
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.
Subject:
[+]
Article
EMG
Fatigue
Inclined Surfaces
Postural Stability
Visual Cues

Source:
Ergonomics. 58(2):278-290.
Pubmed ID:
25331562
Pubmed Central ID:
PMC4557765
Document Type:
Journal Article
Funding:
DAL2/Intramural CDC HHS/United States ; R01 OH03400/OH/NIOSH CDC HHS/United States
DAL2/Intramural CDC HHS/United States ; R01 OH03400/OH/NIOSH CDC HHS/United States Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:a6d4a10719d3fa27376a1cd16ca6b2f7b34b1fc699a5b1afba057332ce07fd44
File Type:

Supporting Files

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