To investigate the gait differences between unilateral transfemoral amputees with ischial containment prostheses and quadrilateral prostheses in daily life, in order to provide guidance for the formulation of prosthesis prescription for unilateral transfemoral amputees in clinic. Methods Seven participants with transfemoral amputees were selected as the test group. quadrilateral prostheses and ischial containment prostheses were made and well fitted with patients. At the same time, 7 healthy participants matched for age, sex, height, and weight were selected as the control group. All subjects walked 240 m on the flat road at a comfortable, self-selected velocity, at the same time the Intelligent device for energy expenditure and activity (IDEEA) was used to collect the gait parameters, including 7 spatiotemporal parameters and 4 acceleration parameters. Data were processed and analyzed by IBM SPSS Statistics 23, gait differences were compared between patients wearing two kinds of prosthetics and healthy people, between the affected sides or the healthy sides of patients wearing different prosthetics, and between the affected side and the healthy side of patients wearing same prosthetics. Results Compared with healthy subjects, when they walked on the flat road, for the patients, the standing duration and gait cycle were significantly increased (P<0.05); stride speed, stride frequency and stride length significantly decreased (P<0.05); the swinging duration of affected side of prostheses was significantly longer(P<0.05), ground impact and foot landing control decreased significantly(P<0.05); The single step time of quadrilateral prostheses and the healthy side of ischial containment prostheses was significantly longer (P<0.05). The swinging duration of affected side of quadrilateral prostheses was significantly longer than healthy side (P=0.03); The swinging duration of affected side of ischial containment prostheses was significantly longer than healthy side(P=0.02), ground impact was significantly lower than healthy side(P=0.04). The gait cycle of affected side of quadrilateral prostheses was significantly longer than ischial containment prostheses (P=0.01);The gait cycle of healthy side of quadrilateral prostheses was significantly longer than ischial containment prostheses (P=0.03). Conclusions The walking speed of patients wearing prosthetics was significantly slower than healthy subjects. There were compensations on the healthy side during walking. Walking speed of participants with ischial containment prostheses was significantly faster than participants with quadrilateral prostheses. Ischial containment prostheses was more stable than quadrilateral prostheses during support period of affected side when walking.
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