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Published on: May 26, 2020
Knee Joint Contact Forces during High-Risk Dynamic Tasks: 90° Change of Direction and Deceleration Movements.
Giorgio Cassiolas1, Stefano Di Paolo2, Gregorio Marchiori1
1Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy.
Athletes face high knee injury risk from pivoting sports. This study reveals how frontal plane knee alignment significantly impacts tibiofemoral contact forces, crucial for injury prevention.
Area of Science:
- Biomechanics
- Sports Medicine
- Orthopedics
Background:
- Pivoting sports like soccer carry a high risk of knee injuries due to mechanical overloading.
- Understanding tibiofemoral contact forces (TFCF) is crucial for mitigating these injuries.
Purpose of the Study:
- To investigate the magnitude of TFCF during high-risk dynamic tasks in athletes.
- To explore the influence of frontal plane knee alignment on TFCF distribution.
- To assess sex-based differences in TFCF during specific athletic movements.
Main Methods:
- Developed a novel musculoskeletal model with adjustable frontal plane knee alignment.
- Utilized 3D motion analysis and OpenSim software to assess TFCF in 31 soccer players.
- Employed statistical parametric mapping to analyze the effects of alignment, compartment, and genu on TFCF.
Main Results:
- Strong correlation found between frontal plane alignment modifications and changes in compartmental forces (R = 0.71–0.98).
- Lateral TFCF were higher in the initial phase of tasks (1.5–3 BW higher).
- Significant sex differences in TFCF were observed during the late phase of deceleration tasks.
Conclusions:
- Frontal plane knee alignment is a key factor influencing tibiofemoral contact force distribution.
- Understanding these forces can inform targeted injury prevention strategies for athletes.
- Further research into sex-specific biomechanics can enhance rehabilitation protocols.
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