Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement

IntroductionOlder adults experience a higher frequency of collisions with obstacles when stepping over obstacles, particularly with the trailing limb. We recently demonstrated that placing the leading limb closer to an obstacle after crossing effectively increases the toe height of the trailing limb...

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Main Authors: Tomoki Hakamata, Takahiro Higuchi
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Sports and Active Living
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Online Access:https://www.frontiersin.org/articles/10.3389/fspor.2025.1528075/full
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author Tomoki Hakamata
Tomoki Hakamata
Takahiro Higuchi
author_facet Tomoki Hakamata
Tomoki Hakamata
Takahiro Higuchi
author_sort Tomoki Hakamata
collection DOAJ
description IntroductionOlder adults experience a higher frequency of collisions with obstacles when stepping over obstacles, particularly with the trailing limb. We recently demonstrated that placing the leading limb closer to an obstacle after crossing effectively increases the toe height of the trailing limb, resulting in reduced collision. This study investigated whether the intervention of placing the leading limb closer to the obstacle is effective in reducing trailing limb collisions in healthy older adults.MethodsTwenty-one older individuals (11 males, 10 females; mean age 75.7 years) participated. Participants were allocated to one of two groups: a closer placement group, instructed to place the leading limb on a square target positioned on their walking path after crossing an obstacle, and a control group, instructed to cross the obstacle naturally. The target in the closer group was set at 0.5 times the leading limb's foot placement distance, as determined in a pre-test for each participant. The experimental design included a pre-test, intervention, and post-test.Results and discussionThe collision rate for the trailing limb in the closer group was significantly lower in the post-test than that in the pre-test. Furthermore, the variability in toe height and walking speed of the trailing limb in the closer group decreased significantly in the post-test compared to the pre-test. These findings suggest that the intervention of placing the leading limb foot closer to the obstacle after crossing may improve obstacle avoidance by the trailing limb in healthy older adults.
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spelling doaj-art-10722ce41f084786b568287372e5536a2025-01-27T06:40:23ZengFrontiers Media S.A.Frontiers in Sports and Active Living2624-93672025-01-01710.3389/fspor.2025.15280751528075Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placementTomoki Hakamata0Tomoki Hakamata1Takahiro Higuchi2Department of Health Promotion Science, Tokyo Metropolitan University, Tokyo, JapanDepartment of Rehabilitation, Kasai Central Hospital, Tokyo, JapanDepartment of Health Promotion Science, Tokyo Metropolitan University, Tokyo, JapanIntroductionOlder adults experience a higher frequency of collisions with obstacles when stepping over obstacles, particularly with the trailing limb. We recently demonstrated that placing the leading limb closer to an obstacle after crossing effectively increases the toe height of the trailing limb, resulting in reduced collision. This study investigated whether the intervention of placing the leading limb closer to the obstacle is effective in reducing trailing limb collisions in healthy older adults.MethodsTwenty-one older individuals (11 males, 10 females; mean age 75.7 years) participated. Participants were allocated to one of two groups: a closer placement group, instructed to place the leading limb on a square target positioned on their walking path after crossing an obstacle, and a control group, instructed to cross the obstacle naturally. The target in the closer group was set at 0.5 times the leading limb's foot placement distance, as determined in a pre-test for each participant. The experimental design included a pre-test, intervention, and post-test.Results and discussionThe collision rate for the trailing limb in the closer group was significantly lower in the post-test than that in the pre-test. Furthermore, the variability in toe height and walking speed of the trailing limb in the closer group decreased significantly in the post-test compared to the pre-test. These findings suggest that the intervention of placing the leading limb foot closer to the obstacle after crossing may improve obstacle avoidance by the trailing limb in healthy older adults.https://www.frontiersin.org/articles/10.3389/fspor.2025.1528075/fullolder adultswalkingobstacle crossingcollision avoidancemotion analysis
spellingShingle Tomoki Hakamata
Tomoki Hakamata
Takahiro Higuchi
Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
Frontiers in Sports and Active Living
older adults
walking
obstacle crossing
collision avoidance
motion analysis
title Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
title_full Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
title_fullStr Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
title_full_unstemmed Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
title_short Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement
title_sort reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing effect of closer foot placement
topic older adults
walking
obstacle crossing
collision avoidance
motion analysis
url https://www.frontiersin.org/articles/10.3389/fspor.2025.1528075/full
work_keys_str_mv AT tomokihakamata reducingtrailinglimbcollisionsinolderadultsthroughtargetedleadinglimbplacementafterobstaclecrossingeffectofcloserfootplacement
AT tomokihakamata reducingtrailinglimbcollisionsinolderadultsthroughtargetedleadinglimbplacementafterobstaclecrossingeffectofcloserfootplacement
AT takahirohiguchi reducingtrailinglimbcollisionsinolderadultsthroughtargetedleadinglimbplacementafterobstaclecrossingeffectofcloserfootplacement