Citation

Bennett HJ, Brock E, Brosnan JT, Sorochan JC, Zhang S. J. Appl. Biomech. 2015; 31(5): 309-317.

Affiliation

Dept of Kinesiology, Recreation, and Sport Studies, The University of Tennessee, Knoxville, TN.

Copyright

(Copyright © 2015, Human Kinetics Publishers)

DOI

10.1123/jab.2014-0203

PMID

25950515

Abstract

Higher ACL injury rates have been recorded in cleats with higher torsional resistance in American football, which warrants better understanding of shoe/stud dependent joint kinetics. The purpose of this study was to determine differences in knee and ankle kinetics during single-leg land-cuts and 180° cuts on synthetic infilled turf while wearing three shoes. Fourteen recreational football players performed single-leg land-cut and 180° cuts in non-studded running shoe, and football shoe with natural (NTS) and synthetic turf studs (STS). Knee and ankle kinetic variables were analyzed with a 3×2 (shoe×movement) repeated measures ANOVA (p<0.05). A significant shoe by movement interaction was found in loading-response peak knee adduction moments, with NTS producing smaller moments compared to both STS and RS only in 180° cuts. Reduced peak negative plantarflexor powers were also found in NTS compared to STS. The single-leg land-cut produced greater loading-response and pushoff peak knee extensor moments as well as peak negative and positive extensor and plantarflexor powers, but smaller loading peak knee adduction moments and pushoff peak ankle eversion moments than 180° cuts. Overall, the STS and 180° cuts resulted in greater frontal plane knee loading and should be monitored for possible increased ACL injury risks.

Language: en