Stereotyped Pattem of Lower Limb Movement during Level and Grade Walking on Treadmill

Yamasaki Masahiro

Sasaki Takashi

Tsuzuki Shuji

Torii Masafumi

The Annals of physiological anthropology : 生理人類学研究会会誌

The effects of speed and gradient on stereotyped pattern of temporal-distance parameters of the lower limb in human gait were observed on five male subjects walking on a treadmill.Step length and step duration were consecutively determined by means of a computerized system.Step lengrt hincreased approximately in proportion to the square root of the speed,and step duration decreased in proportion to the reciprocal of the square root of the speed.In grade waiking,when compared with level walking,the subject had a tendency to take shorter steps at high speeds and longer steps at low speeds.Standard deviations of step length and step duration showed the minima at the speeds which were estimated to be about 90 and 95m/min for step length and step duration,respectively,although there were some variations of the speed with gradient.Coefficients of variation of these factors also showed the minima at particular speeds.These results suggest that when the subject is allowed to choose his own step length,there exists the speed at which the fluctuation of stereotyped movement of lower limb shows the minimum.

Stereotyped Movement

Level and Grade Walking

Step Length

Step Duration

Medical sciences [ 490 ]

eng

日本生理人類学会

日本生理人類学会

本文データは学協会の許諾に基づきCiNiiから複製したものである

[ISSN] 0287-8429

[NCID] AN10219533

[NAID] 110002507250