A framework for evaluating muscle activity during repetitive manual material handling in construction manufacturing

2017 ◽  
Vol 79 ◽  
pp. 39-48 ◽  
Author(s):  
X. Li ◽  
A. Komeili ◽  
M. Gül ◽  
M. El-Rich
Keyword(s):  
Muscle Activity ◽  
Material Handling ◽  
Manual Material Handling

scholarly journals Manual material handling in the supermarket sector. Part 1: Joint angles and muscle activity of trapezius descendens and erector spinae longissimus

2021 ◽  
Vol 92 ◽  
pp. 103340
Author(s):  
Sebastian Skals ◽  
Rúni Bláfoss ◽  
Michael Skipper Andersen ◽  
Mark de Zee ◽  
Lars Louis Andersen
Keyword(s):  
Muscle Activity ◽  
Material Handling ◽  
Erector Spinae ◽  
Joint Angles ◽  
Manual Material Handling ◽  
Sector Part

Effects of restrictive clothing on lumbar range of motion and trunk muscle activity in young adult worker manual material handling

2013 ◽  
Vol 44 (6) ◽  
pp. 1024-1032 ◽  
Author(s):  
Wichai Eungpinichpong ◽  
Vitsarut Buttagat ◽  
Pattanasin Areeudomwong ◽  
Noppol Pramodhyakul ◽  
Manida Swangnetr ◽  
...  
Keyword(s):  
Young Adult ◽  
Range Of Motion ◽  
Muscle Activity ◽  
Material Handling ◽  
Trunk Muscle ◽  
Manual Material Handling ◽  
Adult Worker ◽  
Lumbar Range Of Motion

scholarly journals Back-Support Exoskeleton Control Strategy for Pulling Activities: Design and Preliminary Evaluation

Designs ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 39
Author(s):  
Maria Lazzaroni ◽  
Tommaso Poliero ◽  
Matteo Sposito ◽  
Stefano Toxiri ◽  
Darwin G. Caldwell ◽  
...  
Keyword(s):  
Control Strategy ◽  
Muscle Activity ◽  
Material Handling ◽  
Ease Of Use ◽  
Biomechanical Analysis ◽  
Perceived Support ◽  
Preliminary Evaluation ◽  
Subjective Measurements ◽  
Spinal Muscles ◽  
Forearm Muscle

The execution of manual material handling activities in the workplace exposes workers to large lumbar loads that increase the risk of musculoskeletal disorders and low back pain. In particular, the redesign of the workplace is making the execution of pulling activities more common, as an alternative to lifting and carrying tasks. The biomechanical analysis of the task revealed a substantial activation of the spinal muscles. This suggests that the user may benefit from the assistance of a back-support exoskeleton that reduces the spinal muscle activity and their contribution to lumbar compression. This work addresses this challenge by exploiting the versatility of an active back-support exoskeleton. A control strategy was specifically designed for assisting pulling that modulates the assistive torques using the forearm muscle activity. These torques are expected to adapt to the user’s assistance needs and the pulled object mass, as forearm muscle activity is considered an indicator of grip strength. We devised laboratory experiments to assess the feasibility and effectiveness of the proposed strategy. We found that, for the majority of the subjects, back muscle activity reductions were associated with the exoskeleton use. Furthermore, subjective measurements reveal advantages in terms of perceived support, comfort, ease of use, and intuitiveness.

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