Article

The purpose of this study was to investigate the mechanism of the
fluctuation in the shear force applied to the buttocks. METHOD: The subjects were
11 healthy adult men without leg or trunk diseases.
The amount of force applied
to the buttocks was measured by using a force plate, and a pressure and shear
force sensor was used to measure the timing of the force applied to the back support. RESULTS: The average value of the shear force applied to the buttocks
was 9.4 +/- 2.4 (%BW) in the initial upright position (IUP), 9.3 +/- 1.2 (%BW) in
the fully reclined position (FRP), and 15.0 +/- 2.9 (%BW) in the returning to an
upright position (RUP). Significant differences appeared between the RUP and the
other positions. CONCLUSIONS: The results of this study suggested that the
adjustment of the axes of rotation of the back support and trunk-pelvis and the
release of the remaining shear force after the back support is reclined are
important for the prevention of decubitus ulcers.

Langue : ANGLAIS