Trunk muscle activity among older and obese individuals during one-handed carrying.

Autor: Badawy M; Auburn University, Department of Industrial and Systems Engineering, 3323 Shelby Center for Engineering Technology, Auburn, AL, USA. Electronic address: msb0058@auburn.edu., Schall MC Jr; Auburn University, Department of Industrial and Systems Engineering, 3301-F Shelby Center for Engineering Technology, Auburn, AL, USA. Electronic address: mark-schall@auburn.edu., Zabala ME; Auburn University, Department of Mechanical Engineering, 3434 Wiggins Hall, Auburn, AL, USA. Electronic address: zabalme@auburn.edu., Coker J; Auburn University, Department of Mechanical Engineering, 3401 Wiggins Hall, Auburn, AL, USA. Electronic address: jcc0041@tigermail.auburn.edu., Davis GA; Auburn University, Department of Industrial and Systems Engineering, 3341 Shelby Center for Engineering Technology, Auburn, AL, USA. Electronic address: davisga@auburn.edu., Sesek RF; Auburn University, Department of Industrial and Systems Engineering, 3341 Shelby Center for Engineering Technology, Auburn, AL, USA. Electronic address: sesek@auburn.edu., Gallagher S; Auburn University, Department of Industrial and Systems Engineering, 3304 Shelby Center for Engineering Technology, Auburn, AL, USA. Electronic address: seangallagher@auburn.edu.
Jazyk: angličtina
Zdroj: Applied ergonomics [Appl Ergon] 2019 Jul; Vol. 78, pp. 217-223. Date of Electronic Publication: 2019 Mar 27.
DOI: 10.1016/j.apergo.2019.03.007
Abstrakt: Manual material handling (MMH) is associated with the development of work-related musculoskeletal disorders (MSDs). One-handed carrying is a particularly challenging form of MMH. Age and obesity have been increasing among the general and working populations in the United States and worldwide. While older and obese workers are more susceptible to MSDs in comparison to younger, healthy workers, the effects of one-handed carrying on trunk muscle activity among these populations have not been comprehensively studied. In this paper, we evaluate the effects of age and obesity on trunk muscle activity of six trunk muscle pairs during one-handed carrying of different loads. The results suggest that older and obese individuals do not exhibit considerably larger muscle activity than young and non-obese individuals while carrying a load of approximately 10 kg in one hand for relatively short distances. Accordingly, 10 kg appears to be an acceptable load to be occasionally carried in one hand by older and/or obese individuals from a muscle activity perspective.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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