1992 年 41 巻 1 号 p. 166-169
Using a floor reaction force plate system, gait studies were performed on 25 unilateral osteoarthritic hip patients and compared with 5 normal healthy adults. Four parameters of gait analysis, that is, “weight off” effect ratio, deceleration effect ratio, stance phase duration ratio and stance phase impulse ratio, were evaluated by force plate data. The “weight off” effect ratio was shown to be the most reliable parameter and correlated to the JOA score. All parameters, except for the “weight off” effect ratio, showed that there was no statistical significance between the gait of normal adults and that of post-operative patients whose JOA score was over 80 points.