Korean J Sports Med.  2011 Jun;29(1):26-36. 10.5763/kjsm.2011.29.1.26.

Effect of Anticipation and Fatigue on Lower Extremity Joint Loads during Side-cutting in Female Soccer Player

Affiliations
  • 1Department of Sport Science, Kookmin University, Seoul, Korea. kklee@kookmin.ac.kr
  • 2Department of Orthopedic Surgery, Ajou University Hospital, Suwon, Korea.
  • 3Department of Physical Education, Chungang University, Seoul, Korea.
  • 4Department of Physical Education, Kyungnam University, Changwon, Korea.

Abstract

To investigate effect of fatigue and anticipation on lower extremity joint load during a side-cutting maneuver in female collegiate soccer players, thirteen female collegiate soccer players whose right leg dominant participated in this study. Three dimensional motion analysis system and a force plate were used to record the 45degrees side cutting maneuver. In the first, anticipated and unanticipated cutting were measured in the pre-fatigue condition. Second, participations performed the fatigue protocol by the squat exercise with weight lifting. And then, two different type of cutting task were measured again after fatigue condition. The cutting direction let known before start their running in case of the anticipated cutting, the random signal of cutting direction were presented in the unanticipated condition. In the results, the most influential variable was anticipation factor. Lower limb angles represented significantly flexed posture during unanticipated cutting than anticipated condition. Maximum knee flexion moment represented significantly higher in unanticipated cutting than anticipated cutting. Adduction and internal rotation moment of lower limb joint decreased in unanticipated cutting. Fatigue factor was influenced by the initial contact angles of the ankle joint. Lower limb angles at the initial ground contact indicated more erect posture in post-fatigue condition. The unanticipation factor had more effect on locomotors ability of lower limb in this study. Therefore, the sensory-motor training to adapt to unanticipated situation should be considered for the injury prevention training program.

Keyword

Soccer; Cutting maneuver; Anticipation; Anterior Cruciate Ligament; Joint load
Full Text Links
  • KJSM
Share
  • Twitter
  • Facebook
Copyright © 2020 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr