AUTHOR=Hakamata Tomoki , Higuchi Takahiro TITLE=Reducing trailing limb collisions in older adults through targeted leading limb placement after obstacle crossing: effect of closer foot placement JOURNAL=Frontiers in Sports and Active Living VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2025.1528075 DOI=10.3389/fspor.2025.1528075 ISSN=2624-9367