The Effects of seat height and foot placement on lumbar spine load during sit-to-stand tasks
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| Tag | 1 | 2 | Valor |
|---|---|---|---|
| LDR | 00000cab a2200000 4500 | ||
| 001 | MAP20140045587 | ||
| 003 | MAP | ||
| 005 | 20141203104158.0 | ||
| 008 | 141202e20140311esp|||p |0|||b|spa d | ||
| 040 | $aMAP$bspa$dMAP | ||
| 084 | $a875 | ||
| 245 | 0 | 4 | $aThe Effects of seat height and foot placement on lumbar spine load during sit-to-stand tasks$cY. Blache...[et.al] |
| 520 | $aThe purpose of this study was to determine the influence of seat height and foot position in the sagittal plane on L5-S1 joint load. Fourteen healthy male adults stood up from a chair with three different seat heights and positions of the feet in the sagittal plane. L5-S1 net joint torque, mechanical work, range of motion and electromyographic activity of the erector spinae muscle were measured. L5-S1 net joint work increased by about 50% from high to low seat position. The mean and peak L5-S1 net joint torques increased about 30% from foot-back to foot-neutral position. These results were reinforced by a greater integrated electromyography signal from the erector spinae from high to low seat position and from foot-back to foot-neutral position. A high chair and placement of the feet behind the knees may be advisable to lessen lumbar load during sit-to-stand movements. | ||
| 773 | 0 | $wMAP20100019818$tErgonomics : the international journal of research and practice in human factors and ergonomics$dOxon [United Kingdom] : Taylor & Francis, 2010-$x0014-0139$g03/11/2014 Volumen 57 Número 11 - noviembre 2014 |