The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults

Sang Joon Park, Yohei Otaka, Shinpei Okada, Hiroharu Kamioka, Hiroyasu Okuizumi, Taiki Komatu, Yoshiteru Mutoh

Research output: Contribution to journalArticle

Abstract

In this study, we investigated whether subjects with a Lower Maximum Step Length (MSL) Percentage (LMP) display unstable locomotion while negotiating an obstacle. Data were collected using a three-dimensional motion analysis system. The toe-obstacle clearance of the leading limb was monitored in 10 young adults while stepping over three height obstacles from 30%, 40% and 50% of MSL. The vertical clearance at the time of the obstacle crossing decreased systematically with more complicated experimental set up. In particular, subjects with LMP showed smaller clearances than subjects with a Higher Maximum step length Percentage (HMP). Furthermore, a significant correlation was observed between the toe-obstacle clearance and MSL. The mean of variance value of toe-obstacle clearance of the leading limb differed between the subjects with LMP and those with HMP. Our findings help to explain the relation of MSL and gait adaption ability to negotiate obstacles safely during obstacles crossing.

Original languageEnglish
Pages (from-to)103-109
Number of pages7
JournalJapanese Journal of Physical Fitness and Sports Medicine
Volume61
Issue number1
Publication statusPublished - 2012 Feb
Externally publishedYes

Fingerprint

Toes
Extremities
Aptitude
Negotiating
Locomotion
Gait
Young Adult

Keywords

  • Maximum step length (msl)
  • Mean of variance value of toe-obstacle clearance
  • Obstacle distance
  • Obstacle height
  • Toe-obstacle clearance

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Park, S. J., Otaka, Y., Okada, S., Kamioka, H., Okuizumi, H., Komatu, T., & Mutoh, Y. (2012). The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults. Japanese Journal of Physical Fitness and Sports Medicine, 61(1), 103-109.

The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults. / Park, Sang Joon; Otaka, Yohei; Okada, Shinpei; Kamioka, Hiroharu; Okuizumi, Hiroyasu; Komatu, Taiki; Mutoh, Yoshiteru.

In: Japanese Journal of Physical Fitness and Sports Medicine, Vol. 61, No. 1, 02.2012, p. 103-109.

Research output: Contribution to journalArticle

Park, SJ, Otaka, Y, Okada, S, Kamioka, H, Okuizumi, H, Komatu, T & Mutoh, Y 2012, 'The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults', Japanese Journal of Physical Fitness and Sports Medicine, vol. 61, no. 1, pp. 103-109.
Park, Sang Joon ; Otaka, Yohei ; Okada, Shinpei ; Kamioka, Hiroharu ; Okuizumi, Hiroyasu ; Komatu, Taiki ; Mutoh, Yoshiteru. / The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults. In: Japanese Journal of Physical Fitness and Sports Medicine. 2012 ; Vol. 61, No. 1. pp. 103-109.
@article{5b5b75fa78f74f388492abfcb3bd6652,
title = "The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults",
abstract = "In this study, we investigated whether subjects with a Lower Maximum Step Length (MSL) Percentage (LMP) display unstable locomotion while negotiating an obstacle. Data were collected using a three-dimensional motion analysis system. The toe-obstacle clearance of the leading limb was monitored in 10 young adults while stepping over three height obstacles from 30{\%}, 40{\%} and 50{\%} of MSL. The vertical clearance at the time of the obstacle crossing decreased systematically with more complicated experimental set up. In particular, subjects with LMP showed smaller clearances than subjects with a Higher Maximum step length Percentage (HMP). Furthermore, a significant correlation was observed between the toe-obstacle clearance and MSL. The mean of variance value of toe-obstacle clearance of the leading limb differed between the subjects with LMP and those with HMP. Our findings help to explain the relation of MSL and gait adaption ability to negotiate obstacles safely during obstacles crossing.",
keywords = "Maximum step length (msl), Mean of variance value of toe-obstacle clearance, Obstacle distance, Obstacle height, Toe-obstacle clearance",
author = "Park, {Sang Joon} and Yohei Otaka and Shinpei Okada and Hiroharu Kamioka and Hiroyasu Okuizumi and Taiki Komatu and Yoshiteru Mutoh",
year = "2012",
month = "2",
language = "English",
volume = "61",
pages = "103--109",
journal = "Japanese Journal of Physical Fitness and Sports Medicine",
issn = "0039-906X",
publisher = "Japanese Society of Physical Fitness and Sports Medicine",
number = "1",

}

TY - JOUR

T1 - The effect of obstacle height and maximum step length (MSL) on obstacle crossing in healthy adults

AU - Park, Sang Joon

AU - Otaka, Yohei

AU - Okada, Shinpei

AU - Kamioka, Hiroharu

AU - Okuizumi, Hiroyasu

AU - Komatu, Taiki

AU - Mutoh, Yoshiteru

PY - 2012/2

Y1 - 2012/2

N2 - In this study, we investigated whether subjects with a Lower Maximum Step Length (MSL) Percentage (LMP) display unstable locomotion while negotiating an obstacle. Data were collected using a three-dimensional motion analysis system. The toe-obstacle clearance of the leading limb was monitored in 10 young adults while stepping over three height obstacles from 30%, 40% and 50% of MSL. The vertical clearance at the time of the obstacle crossing decreased systematically with more complicated experimental set up. In particular, subjects with LMP showed smaller clearances than subjects with a Higher Maximum step length Percentage (HMP). Furthermore, a significant correlation was observed between the toe-obstacle clearance and MSL. The mean of variance value of toe-obstacle clearance of the leading limb differed between the subjects with LMP and those with HMP. Our findings help to explain the relation of MSL and gait adaption ability to negotiate obstacles safely during obstacles crossing.

AB - In this study, we investigated whether subjects with a Lower Maximum Step Length (MSL) Percentage (LMP) display unstable locomotion while negotiating an obstacle. Data were collected using a three-dimensional motion analysis system. The toe-obstacle clearance of the leading limb was monitored in 10 young adults while stepping over three height obstacles from 30%, 40% and 50% of MSL. The vertical clearance at the time of the obstacle crossing decreased systematically with more complicated experimental set up. In particular, subjects with LMP showed smaller clearances than subjects with a Higher Maximum step length Percentage (HMP). Furthermore, a significant correlation was observed between the toe-obstacle clearance and MSL. The mean of variance value of toe-obstacle clearance of the leading limb differed between the subjects with LMP and those with HMP. Our findings help to explain the relation of MSL and gait adaption ability to negotiate obstacles safely during obstacles crossing.

KW - Maximum step length (msl)

KW - Mean of variance value of toe-obstacle clearance

KW - Obstacle distance

KW - Obstacle height

KW - Toe-obstacle clearance

UR - http://www.scopus.com/inward/record.url?scp=84861357226&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861357226&partnerID=8YFLogxK

M3 - Article

VL - 61

SP - 103

EP - 109

JO - Japanese Journal of Physical Fitness and Sports Medicine

JF - Japanese Journal of Physical Fitness and Sports Medicine

SN - 0039-906X

IS - 1

ER -