Healthy individuals are more maneuverable when walking slower while navigating a virtual obstacle course

Katherine L. Hsieh, Riley C. Sheehan, Jason M. Wilken, Jonathan B. Dingwell

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Introduction: Maintaining stability, especially in the mediolateral direction, is important for successful walking. Navigating in the community, however, may require people to reduce stability to make quick lateral transitions, creating a tradeoff between stability and maneuverability. Walking slower can improve stability during steady state walking, but there remains a need to better understand how walking speed influences maneuverability. This study investigated how walking at different speeds influenced how individuals modulate both stability and maneuverability in a virtual obstacle course. Methods: Fifteen healthy adults walked on a treadmill in a virtual environment for 6 trials each at typical and slower speed. Participants made repeated transitions between virtual sets of arches displayed in any of 4 lanes. Participants were instructed to walk under the arches and hit as few arches as possible. To quantify stability, mean step width and mean lateral margin of stability (Mean MOS) were calculated and averaged for ipsilateral and contralateral steps. To quantify maneuverability, the number of arches hit when entering or exiting each arch set was calculated and averaged for each condition. Results: Participants exhibited high levels of variability in their stepping patterns. Mean MOS and mean step width were significantly greater for the typical speed than slower speed for the ipsilateral steps (p < 0.001). Participants hit more arches during the typical speed than during the slow speed (p = 0.039). Conclusion: When walking at the slower speed, healthy individuals exhibited decreased stability of ipsilateral steps, but increased maneuverability and better transition performance.

Original languageEnglish (US)
Pages (from-to)466-472
Number of pages7
JournalGait and Posture
Volume61
DOIs
StatePublished - Mar 2018

Fingerprint

Walking

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

Cite this

Hsieh, Katherine L. ; Sheehan, Riley C. ; Wilken, Jason M. ; Dingwell, Jonathan B. / Healthy individuals are more maneuverable when walking slower while navigating a virtual obstacle course. In: Gait and Posture. 2018 ; Vol. 61. pp. 466-472.
@article{97906a510a5b47189f91033b54f6a515,
title = "Healthy individuals are more maneuverable when walking slower while navigating a virtual obstacle course",
abstract = "Introduction: Maintaining stability, especially in the mediolateral direction, is important for successful walking. Navigating in the community, however, may require people to reduce stability to make quick lateral transitions, creating a tradeoff between stability and maneuverability. Walking slower can improve stability during steady state walking, but there remains a need to better understand how walking speed influences maneuverability. This study investigated how walking at different speeds influenced how individuals modulate both stability and maneuverability in a virtual obstacle course. Methods: Fifteen healthy adults walked on a treadmill in a virtual environment for 6 trials each at typical and slower speed. Participants made repeated transitions between virtual sets of arches displayed in any of 4 lanes. Participants were instructed to walk under the arches and hit as few arches as possible. To quantify stability, mean step width and mean lateral margin of stability (Mean MOS) were calculated and averaged for ipsilateral and contralateral steps. To quantify maneuverability, the number of arches hit when entering or exiting each arch set was calculated and averaged for each condition. Results: Participants exhibited high levels of variability in their stepping patterns. Mean MOS and mean step width were significantly greater for the typical speed than slower speed for the ipsilateral steps (p < 0.001). Participants hit more arches during the typical speed than during the slow speed (p = 0.039). Conclusion: When walking at the slower speed, healthy individuals exhibited decreased stability of ipsilateral steps, but increased maneuverability and better transition performance.",
author = "Hsieh, {Katherine L.} and Sheehan, {Riley C.} and Wilken, {Jason M.} and Dingwell, {Jonathan B.}",
year = "2018",
month = "3",
doi = "10.1016/j.gaitpost.2018.02.015",
language = "English (US)",
volume = "61",
pages = "466--472",
journal = "Gait and Posture",
issn = "0966-6362",
publisher = "Elsevier",

}

Healthy individuals are more maneuverable when walking slower while navigating a virtual obstacle course. / Hsieh, Katherine L.; Sheehan, Riley C.; Wilken, Jason M.; Dingwell, Jonathan B.

In: Gait and Posture, Vol. 61, 03.2018, p. 466-472.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Healthy individuals are more maneuverable when walking slower while navigating a virtual obstacle course

AU - Hsieh, Katherine L.

AU - Sheehan, Riley C.

AU - Wilken, Jason M.

AU - Dingwell, Jonathan B.

PY - 2018/3

Y1 - 2018/3

N2 - Introduction: Maintaining stability, especially in the mediolateral direction, is important for successful walking. Navigating in the community, however, may require people to reduce stability to make quick lateral transitions, creating a tradeoff between stability and maneuverability. Walking slower can improve stability during steady state walking, but there remains a need to better understand how walking speed influences maneuverability. This study investigated how walking at different speeds influenced how individuals modulate both stability and maneuverability in a virtual obstacle course. Methods: Fifteen healthy adults walked on a treadmill in a virtual environment for 6 trials each at typical and slower speed. Participants made repeated transitions between virtual sets of arches displayed in any of 4 lanes. Participants were instructed to walk under the arches and hit as few arches as possible. To quantify stability, mean step width and mean lateral margin of stability (Mean MOS) were calculated and averaged for ipsilateral and contralateral steps. To quantify maneuverability, the number of arches hit when entering or exiting each arch set was calculated and averaged for each condition. Results: Participants exhibited high levels of variability in their stepping patterns. Mean MOS and mean step width were significantly greater for the typical speed than slower speed for the ipsilateral steps (p < 0.001). Participants hit more arches during the typical speed than during the slow speed (p = 0.039). Conclusion: When walking at the slower speed, healthy individuals exhibited decreased stability of ipsilateral steps, but increased maneuverability and better transition performance.

AB - Introduction: Maintaining stability, especially in the mediolateral direction, is important for successful walking. Navigating in the community, however, may require people to reduce stability to make quick lateral transitions, creating a tradeoff between stability and maneuverability. Walking slower can improve stability during steady state walking, but there remains a need to better understand how walking speed influences maneuverability. This study investigated how walking at different speeds influenced how individuals modulate both stability and maneuverability in a virtual obstacle course. Methods: Fifteen healthy adults walked on a treadmill in a virtual environment for 6 trials each at typical and slower speed. Participants made repeated transitions between virtual sets of arches displayed in any of 4 lanes. Participants were instructed to walk under the arches and hit as few arches as possible. To quantify stability, mean step width and mean lateral margin of stability (Mean MOS) were calculated and averaged for ipsilateral and contralateral steps. To quantify maneuverability, the number of arches hit when entering or exiting each arch set was calculated and averaged for each condition. Results: Participants exhibited high levels of variability in their stepping patterns. Mean MOS and mean step width were significantly greater for the typical speed than slower speed for the ipsilateral steps (p < 0.001). Participants hit more arches during the typical speed than during the slow speed (p = 0.039). Conclusion: When walking at the slower speed, healthy individuals exhibited decreased stability of ipsilateral steps, but increased maneuverability and better transition performance.

UR - http://www.scopus.com/inward/record.url?scp=85042449882&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042449882&partnerID=8YFLogxK

U2 - 10.1016/j.gaitpost.2018.02.015

DO - 10.1016/j.gaitpost.2018.02.015

M3 - Article

C2 - 29494819

AN - SCOPUS:85042449882

VL - 61

SP - 466

EP - 472

JO - Gait and Posture

JF - Gait and Posture

SN - 0966-6362

ER -