Journal of the Society of Biomechanisms
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Volume 24, Issue 2
Displaying 1-9 of 9 articles from this issue
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  • Determinants of gait temporal-distance factors in the healthy subjects; Part I : Testing conditions
    Toshio Kubota, Takamasa Tsuchida
    Article type: Article
    2000 Volume 24 Issue 2 Pages 107-114
    Published: May 01, 2000
    Released on J-STAGE: November 01, 2016
    DOIhttps://doi.org/10.3951/sobim.24.107
    JOURNAL FREE ACCESS
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    The purpose of this study was to investigate the influence of several testing conditions on temporal and distance factors of normal gait obtained from the forceplate data. Two hundred fifty two apparently healthy subject between 22 and 79 years of age participated in this study. Subjects walked repeatedly over 3.6 meter forceplates at six different conditions, accumlating ten quasi-steady state steps data of both sides. The tesing conditions were l) at customary speed without any restraint 2) at customary speed 3) at slow speed 4) at high speed 5) at possible narrow step width 6) at stepping over 5 cm high obstacles. In conditions 2) to 4), subjects were asked to step right and left feet separately on respective forceplates. The mean of all subjects about individual mean of ten steps ranged 0.9 to I .O in conditions l), 2), 4) and 6) concerning the ratio of cadence to *~tride length. The mean of all subjects about individual coefficient of variance of cycle time of ten steps were mininum in all 6 conditions. On the other hand, relatively little variation among testing condition was found concerning the average of ratio of stance time, swing time, double support time to cycle time and ratio of right stance time to left stance time. Thease results are expected to be used as a standard when pathological data are compaired with normal healthy data.
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  • Determinants of gait temporal-distance factors in the healthy subjects; Part II : Individual factors
    Toshio Kubota, Takamasa Tsuchida
    Article type: Article
    2000 Volume 24 Issue 2 Pages 115-122
    Published: May 01, 2000
    Released on J-STAGE: November 01, 2016
    DOIhttps://doi.org/10.3951/sobim.24.115
    JOURNAL FREE ACCESS
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    The purpose of this study was to determine the useful standards for the quantitative evaluation of the gait disturbance on the findings of contribution of four indivisual factors to temporal and distance factors of normal gait. Further detailed condition about of the subjects and the testing conditions (No.1 - 6) are de-scribed in our previous paper(Part I: testing conditions). Multiple regression analysis was used with its objectve variables being temporal-distance parameters and its explanative variables as age, gender, height, and weight. With regard to mean of ten steps, multiple regression coefficients were higher than 0.400 in all objective vari-ables except for ratio of right stance time to left stance time under conditions N0.1 and N0.2 and in some variables including gait speed under conditions N0.4 and N0.6 and in only step width under condition N0.3 and in only stride length under condition N0.5. With regard to coefficient of variance in ten steps, almost all mult-ple regression coefficients were lower than 0.300. Results of this study indicated that predicted values ob-tained by multiple regression analysis for parameters of higher R and average values in all healthy subjects for parameters of lower R are useful as standards of the gait disturbance.
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