STRATEGIES FOR A SELF-SELECTED UNANTICIPATED CHANGE OF DIRECTION MANEUVER AND THE RISK FOR ACL INJURY: FINDINGS FROM HAIE STUDY

Authors

  • Denisa Blaschova Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic
  • Daniel Jandačka Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic
  • David Zahradnik Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic
  • Joseph Hamill Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic; Biomechanics Laboratory, University of Massachusetts, Amherst, MA, USA

Keywords:

Knee moment, knee flexion, cutting maneuver, strategies, anterior cruciate ligament

Abstract

The purpose of the study was twofold: 1) to qualitatively investigate the different change of direction (COD) strategies used by females in an ecological situation; and 2) to evaluate the knee internal adduction moment and knee flexion during the first 30% of support as risk factors for anterior cruciate ligament (ACL) injury during these strategies. Ninety-four females, classified in ACTIVE and NON-ACTIVE groups performed five trials of a COD maneuver that were subsequently qualitatively evaluated. Kinematic and ground reaction force data were analyzed in the first 30% of support. To assess differences between strategies, we used a two-way repeated measures analysis of variance. Four strategies of 45° COD maneuvers were found. The different strategies involved either a cross-over with the right or left leg or had no cross-over. The statistical analysis revealed significant differences with a lesser knee internal adduction moment (p<.05) and a greater knee flexion angle during the strategies with a cross-over of the right foot compared to the other strategies (p<.05). Therefore, it is important to consider the potential effect of different strategies on ACL injury risk factors, as ACL injury risk factors may vary depending on the specific directional technique used.

Keywords: knee moment, knee flexion, change of direction, COD strategies, anterior cruciate ligament

Author Biographies

Denisa Blaschova, Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic

Biomechanics PhD Candidate in Kinanthropology at the Department of Human Movement Studies, University of Ostrava

Daniel Jandačka, Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic

Department of Human Movement Studies, University of Ostrava, Head of Faculty

David Zahradnik, Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic

Department of Human Movement Studies, University of Ostrava, Head of Department

Joseph Hamill, Department of Human Movement Studies, Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech Republic; Biomechanics Laboratory, University of Massachusetts, Amherst, MA, USA

University of Massachusetts Amherst, Biomechanics Laboratory, Professor Emeritus of Kinesiology

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Published

2024-07-04

How to Cite

Blaschova, D., Jandačka, D. ., Zahradnik, D., & Hamill, J. (2024). STRATEGIES FOR A SELF-SELECTED UNANTICIPATED CHANGE OF DIRECTION MANEUVER AND THE RISK FOR ACL INJURY: FINDINGS FROM HAIE STUDY. Kinesiology, 56(1), 173–180. Retrieved from https://hrcak.srce.hr/ojs/index.php/kinesiology/article/view/27081

Issue

Vol. 56 No. 1 (2024)

Section

Articles

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