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Published on: May 1, 2018
Preseason Passive Torque Asymmetries in Soccer Players with Hamstring Strain Injury
Kosuke Takeuchi1, Kazuhiro Sakamoto2, Mitsuo Neya2
1Kobe International University, Department of Physical Therapy, Hyogo Prefecture, Japan, Kobe.
International Journal of Sports Medicine
|June 16, 2026
Summary
Preseason hamstring strain injuries in soccer players may be predicted by differences in passive torque. Greater passive torque asymmetry in the injured group suggests it
Area of Science:
- Sports Medicine
- Biomechanics
- Orthopedics
Background:
- Hamstring strain injuries are common in soccer.
- Identifying preseason risk factors is crucial for injury prevention.
Purpose of the Study:
- To investigate preseason differences in range of motion and passive torque.
- To compare these measures within and between collegiate soccer players who did and did not sustain hamstring strain injuries.
Main Methods:
- 108 collegiate male soccer players were assessed for range of motion (straight leg raising, passive knee extension) and passive torque.
- Hamstring strain injuries were prospectively recorded.
- Data from 84 players, including 10 with injuries, were analyzed.
Main Results:
- No significant differences in range of motion were found within or between groups.
- Significant differences in passive torque were observed between injured and non-injured legs (p = 0.04).
- Passive torque asymmetry was significantly greater in the injured group compared to the non-injured group (p < 0.01).
Conclusions:
- Preseason passive torque asymmetry may serve as a potential risk factor for hamstring strain injuries in collegiate male soccer players.
- Further research is warranted to confirm these findings and develop targeted interventions.
