Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men

During continuous uphill walking (UW) or downhill walking, human locomotion is modified to counteract the gravitational force, aiding or impeding the body’s forward momentum, respectively. This study aimed at investigating the center of mass (COM) and center of pressure (COP) velocities and their re...

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Main Authors: Yoon No Gregory Hong, Jinkyu Lee, Choongsoo S. Shin
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Applied Bionics and Biomechanics
Online Access:http://dx.doi.org/10.1155/2018/2028638
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author Yoon No Gregory Hong
Jinkyu Lee
Choongsoo S. Shin
author_facet Yoon No Gregory Hong
Jinkyu Lee
Choongsoo S. Shin
author_sort Yoon No Gregory Hong
collection DOAJ
description During continuous uphill walking (UW) or downhill walking, human locomotion is modified to counteract the gravitational force, aiding or impeding the body’s forward momentum, respectively. This study aimed at investigating the center of mass (COM) and center of pressure (COP) velocities and their relative distance during the transition from uphill to downhill walking (UDW) to determine whether locomotor adjustments differ between UDW and UW. Fourteen participants walked on a triangular slope and a continuous upslope of 15°. The kinematics and COPs were obtained using a force plate and a motion capture system. The vertical velocity of the COM in the propulsion phase, the horizontal distance between the COM and COP at initial contact, and the duration of the subphases significantly differed between UDW and UW (all p<0.05). Compared with the results of UW, longer durations and the deeper downward moving COM in the propulsion phase were observed during UDW (all p<0.05). Additionally, a shorter horizontal distance between the COM and COP at initial contact was associated with a slower vertical COM velocity in the propulsion phase during UDW. The reduced velocity is likely a gait alteration to decrease the forward momentum of the body during UDW.
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spelling doaj-art-96db1a2bf4634dcea19251b99637367d2025-02-03T01:26:40ZengWileyApplied Bionics and Biomechanics1176-23221754-21032018-01-01201810.1155/2018/20286382028638Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young MenYoon No Gregory Hong0Jinkyu Lee1Choongsoo S. Shin2Department of Mechanical Engineering, Colorado School of Mines, Golden, CO 80410, USADepartment of Mechanical Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of KoreaDepartment of Mechanical Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of KoreaDuring continuous uphill walking (UW) or downhill walking, human locomotion is modified to counteract the gravitational force, aiding or impeding the body’s forward momentum, respectively. This study aimed at investigating the center of mass (COM) and center of pressure (COP) velocities and their relative distance during the transition from uphill to downhill walking (UDW) to determine whether locomotor adjustments differ between UDW and UW. Fourteen participants walked on a triangular slope and a continuous upslope of 15°. The kinematics and COPs were obtained using a force plate and a motion capture system. The vertical velocity of the COM in the propulsion phase, the horizontal distance between the COM and COP at initial contact, and the duration of the subphases significantly differed between UDW and UW (all p<0.05). Compared with the results of UW, longer durations and the deeper downward moving COM in the propulsion phase were observed during UDW (all p<0.05). Additionally, a shorter horizontal distance between the COM and COP at initial contact was associated with a slower vertical COM velocity in the propulsion phase during UDW. The reduced velocity is likely a gait alteration to decrease the forward momentum of the body during UDW.http://dx.doi.org/10.1155/2018/2028638
spellingShingle Yoon No Gregory Hong
Jinkyu Lee
Choongsoo S. Shin
Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
Applied Bionics and Biomechanics
title Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
title_full Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
title_fullStr Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
title_full_unstemmed Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
title_short Transition versus Continuous Slope Walking: Adaptation to Change Center of Mass Velocity in Young Men
title_sort transition versus continuous slope walking adaptation to change center of mass velocity in young men
url http://dx.doi.org/10.1155/2018/2028638
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