An investigation of perceived exertion via whole body exertion and direct muscle force indicators during the determination of the maximum acceptable weight of lift

Article Abstract:

The perceived exertion mechanisms linked to the decision to change the weight of lift during the determination of maximum acceptable weight of life (MAWL), were identified. Results suggested that the force in the left erector spinae, right internal oblique and left latissimus dorsi muscles and the heart rate were linked to decreases in weight before the next lift. Local factors and whole body exertion factors combined to provide the feedback for the perceived exertion.

Materials handling

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Reduction of spinal loading through the use of handles

Article Abstract:

A study was conducted to assess how different handling couplings of industrial pallet systems influenced spinal loading and incidence of low back disorder (LBD). The Lumbar Motion Monitor was used to gather trunk motion variables involved in the palletizing/depalletizing task. Findings revealed that handle coupling and pallet region significantly reduced both anterior-posterior shear and compression forces. The type of handle coupling mediated the maximum trunk movement in all three planes of pallet's lower regions and the presence of handles decreased the risk of LBD.

Usage, Equipment and supplies, Prevention, Pallets (Shipping, storage, etc.), Pallets (Platforms), Loading and unloading, Handles

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Relation between spinal load factors and the high-risk probability of occupational low-back disorder

Article Abstract:

Spinal compression is usually assumed to be the main biomechanical mechanism linked with occupationally related low-back disorders (LBD). Some of the multidimensional, dynamic biomechanical factors linked with LBD risk were identified, and whether spinal compression could be a major contributor to injury. Improved understanding of such dynamic biomechanical interactions affecting the spine would allow more accurate assessments of workplace injury factors linked with LBD.

Occupational health and safety, Occupational safety and health

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