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Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
Published on: April 11, 2018
Determination of dynamic ankle ligament strains from a computational model driven by motion analysis based kinematic
Feng Wei1, Jerrod E Braman, Brian T Weaver
1Orthopaedic Biomechanics Laboratories, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA.
Journal of Biomechanics
|September 6, 2011
Summary
External foot rotation can cause high ankle sprains. This study developed a new method to measure ankle ligament strains during rotation, finding the anterior tibiofibular ligament (ATiFL) experienced the highest strain.
Area of Science:
- Biomechanics
- Sports Medicine
- Orthopedics
Background:
- External foot rotation is linked to high ankle sprains.
- Previous research focused on torque, not direct ligament strain.
- Shoe-surface interaction may contribute to ankle injuries.
Purpose of the Study:
- Develop a method to measure dynamic ankle ligament strains.
- Integrate motion analysis with computational ankle modeling.
- Investigate ligament strain during external foot rotation.
Main Methods:
- Used marker-based motion analysis to capture hindfoot motion.
- Integrated kinematic data with a computational ankle model.
- Calculated time-dependent ankle ligament strains in six subjects.
Main Results:
- Anterior tibiofibular ligament (ATiFL) showed highest strain (9.2±1.1%).
- Anterior deltoid ligament (ADL) strain was 7.8±0.7%.
- Peak ATiFL strain preceded peak ADL strain in all subjects.
Conclusions:
- Novel methodology allows dynamic ankle ligament strain measurement.
- Provides insights into high ankle sprain mechanisms.
- Offers a basis for evaluating shoe-surface interactions in vivo.
