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The effect of derotation braces on knee motion.
Y Tegner1, G Pettersson, J Lysholm
1Department of Orthopedics, University Hospital, Linköping, Sweden.
Acta Orthopaedica Scandinavica
|June 1, 1988
Summary
This study evaluated knee braces for ice-hockey players. The best braces effectively limited knee rotation and movement without impacting player performance.
Area of Science:
- Orthopedic biomechanics
- Sports medicine
- Knee joint kinematics
Background:
- Ice hockey demands significant knee stability and control.
- Anterior cruciate ligament (ACL) injuries are common in ice hockey.
- Knee braces are frequently used to prevent or manage knee injuries.
Purpose of the Study:
- To assess the efficacy of four derotation knee braces and one elastic knee support.
- To evaluate the impact of these braces on knee rotational and angular stability during simulated sports movements.
- To determine if brace use affects athletic performance in ice hockey players.
Main Methods:
- Four types of derotation braces and one elastic knee support were tested.
- Participants included ice hockey players performing various simulated sports actions.
- Measurements included knee rotation, abduction-adduction, flexion-extension, and performance metrics like figure-eight running time.
Main Results:
- Elastic support showed minimal effect on knee rotation and abduction-adduction.
- All tested derotation braces reduced knee rotation and abduction-adduction during simulated sports actions.
- Two custom-made braces slightly affected flexion-extension and slowed figure-eight running.
- The most effective braces (one custom, one ready-made) limited unwanted knee motion without hindering performance.
Conclusions:
- Derotation knee braces can effectively limit excessive knee rotation and abduction-adduction in ice hockey.
- Brace design significantly influences effectiveness and potential performance impact.
- Careful selection of knee braces is crucial for optimizing protection and maintaining athletic performance.