%0 Journal Article %T Trapezius muscle tone and viscoelastic properties in sitting and supine positions %A Viir, Ragnar %A Virkus, Ahti %A Laiho, Kari %A Rajaleid, Kristiina %A Selart, Anne %A Mikkelsson, Marja %J SJWEH Supplements %D 2007 %8 December 3 %N 3 %@ 1795-9926 %F Viir2007 %X '

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OBJECTIVES ': 'In this study, the aim was to use the upper trapezius muscle as a representative of the musculoskeletal support system to determine the effect of changing from a sitting position to a lying position on muscle tension and whether this change could be useful in the prevention of musculoskeletal complaints.

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METHODS ': 'Fifteen healthy right-handed female computer operators participated in this study. Myometric measurements of the upper trapezius muscle on both sides of the body were recorded for the participants while they were in a sitting position and then again in a supine position.

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RESULTS ': 'Changing from a sitting position to a supine position reduced the tone and stiffness by up to one-fifth—important characteristics of the support function—in the upper trapezius muscle.

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CONCLUSIONS ': 'The change in the tone and stiffness of the trapezius muscle is of significance to the well-being of sedentary workers, particularly computer-terminal operators. Including recommended regular breaks of brief periods of simple, unchallenging movements while in a supine position should enhance their recovery from prolonged sitting because the support requirement on the muscles is lessened.

%K gravity %K muscle %K muscle tone %K prevention %K sitting %K sitting position %K supine position %K support function %K trapezius muscle %K trapezius muscle tone %K viscoelastic property %K workplace %K workplace prevention %U https://www.sjweh.fi/show_abstract.php?abstract_id=1186 %P 76-80