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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Grip force and heart rate responses to manual carrying tasks: effects of material, weight, and base area of the container.
    Author: Lee TH, Tseng CY.
    Journal: Int J Occup Saf Ergon; 2014; 20(3):377-83. PubMed ID: 25189743.
    Abstract:
    This study recruited 16 industrial workers to examine the effects of material, weight, and base area of container on reduction of grip force (ΔGF) and heart rate for a 100-m manual carrying task. This study examined 2 carrying materials (iron and water), 4 carrying weights (4.4, 8.9, 13.3, 17.8 kg), and 2 base areas of container (24 × 24 cm, 35 × 24 cm). This study showed that carrying water significantly increased ΔGF and heart rate as compared with carrying iron. Also, ΔGF and heart rate significantly increased with carrying weight and base area of container. The effects of base area of container on ΔGF and heart rate were greater in carrying water condition than in carrying iron condition. The maximum dynamic effect of water on ΔGF and heart rate occurred when water occupied ~60%-80% of full volume of the container.
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