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Effects of Foot Placement and Height of Bed Surface on Load of the Lumbar Spine During Transfer Activity

인체모형 옮기기 시 발의 배치와 옮기는 지면 높이가 허리척추에 미치는 영향

  • 김원호 (울산과학대학 물리치료과)
  • Received : 2010.05.27
  • Accepted : 2010.07.09
  • Published : 2010.08.28

Abstract

The purpose of this study was to investigate the effect of foot placement and height of bed surface on lumbar spine load in a dummy transfer activity. Fifteen healthy male students participated in this study. All subjects were involved in four different conditions according to foot placement (11 figure and $90^{\circ}$ figure) and height of bed surface (44 cm and 66 cm) randomly. Muscular activations of the biceps brachii, rectus femoris, elector spinae using surface-EMG, vertical ground reaction using force plate, and L4/L5 compression force using 3DSSPP (3D Static Strength Prediction Program) were measured and analysed. The results showed that muscular activations were not significantly different for the various conditions except for the rectus femoris on the right side (p<.05). Futhermore, the vertical ground reaction and L4/L5 compression force were significantly different conditions (p<.05). In conclusion, it is suggested that foot placement at $90^{\circ}$ figure is safer for transfer activity compared with the 11 figure.

Keywords

Foot Placement;Transfer Activity;Workload

Acknowledgement

Supported by : 울산과학대학

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