Abstract:
PURPOSE:This study aimed to investigate the shear displacement between the body and backrest/seat, range of motion (ROM), and force acting on the lower limb joints during sit-stand-sit transitions by operating an electric-powered standing wheelchair. METHODS AND MATERIALS:The amounts of sliding along the backrest and the seat plane, ROM of lower limb joints, and force acting on the knee/foot were measured in twenty-four people with paraplegia. RESULTS:Without an antishear mechanism, the shear displacement was approximately 9 cm between the user's body and the backrest/seat surfaces. During standing up, the user's back slid down and the thigh was displaced rearward, but they moved in opposite directions when wheelchair sat back down. A minimum of 60 degrees of ROM at the hip and knee was needed during sit-stand-sit transitions. The maximal resultant forces acting on the knee restraints could reach 23.5% of body weight. CONCLUSION:Sliding between the body and backrest/seat occurred while transitioning from sitting to standing and vice versa. A certain amount of ROM at lower limb joints and force acting on the knee was necessitated during sit-stand-sit transitions. Careful consideration needs to be given to who the user of the electric powered standing wheelchair is.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Yang YS,Chen MD,Fang WC,Chang JJ,Kuo CCdoi
10.1155/2014/236486subject
Has Abstractpub_date
2014-01-01 00:00:00pages
236486eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
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