負荷重量에 依한 步行動作分析 = Analysis of Walking Motion with the Weights

다국어 초록 (Multilingual Abstract)

The purpose of the present study was to find out efficient walking motion through the analysis of walking posture with the weights of the satchel and observing velocity of walking kinematically. The subjects were selected at random among children of 10 years old in the primary school.
Natural walking motions under the conditions of given velocity of walking and loading weights were photographed.
The results of analyzing these films were as follows:
1. The degree of forward incline of the trunk is as one walk faster, the larger the degree of forward incline of the trunk shows, and the heavier loading weights is, the smaller the degree of amplitude of the trunk is.
2. The length of step and the amplitude in motion of arms was found that the behavier loading weights is, the longer the length of step is; on the other hand, the heavier loading weight is, the smaller amplitude in motion of arms is.
3. The angular velocity in the motion of upper and lower limbs was shown that the heavier loading weights is, the slower the motion of upper limbs is, the faster lower limbs is.
4. Locomotion of the gravity of body was found that the amplitude of locomotion of the gravity becomes vertically the smallest in case of 15% to the body weights and the walking velocity of 120 step per a minute.
5. Locus for the locomotion of upper and lower limbs was found that the faster walking motion is, the shorter the length in locus of locomotion of upper and lower lembs is; on the other hand, the heavier the loading weights is, the longer length of walking step is.
It was proved that the limited level of optimal loading weights lies in 15% to the individual body weight and optimal walking velocity lies in 115~120% to the walking average velocity for efficient and postural walking.