AUTHOR=Sha Zhanxin , Dai Boyi TITLE=Strength and dynamic balance performance in soccer players in the United States: age, sex, and bilateral differences 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.2025.1510803 DOI=10.3389/fspor.2025.1510803 ISSN=2624-9367