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Updated: Jan 22, 2026
07:52
Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
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Landing adaptations in individuals with chronic ankle instability
Zhaoyang Yan1, Qi Wang2, Xiaoxue Zhu3
1School of Special Education and Rehabilitation, Binzhou Medical University, Yantai, China.
Frontiers in Sports and Active Living
|January 21, 2026
Summary
Individuals with chronic ankle instability (CAI) demonstrate a more cautious landing technique, involving reduced ankle movement and increased hip and knee motion. This biomechanical adaptation may influence re-injury risk.
Area of Science:
- Biomechanics
- Sports Medicine
- Orthopedics
Background:
- Chronic ankle instability (CAI) is a prevalent condition affecting individuals after an initial ankle sprain.
- Understanding landing biomechanics is crucial for preventing re-injury in individuals with CAI.
Purpose of the Study:
- To compare the landing strategies on a flip platform between individuals with and without CAI.
- To establish a biomechanical foundation for reducing re-injury risk in CAI populations.
Main Methods:
- 110 participants (55 with CAI, 55 without CAI) were recruited.
- Kinematic data during landing on a simulated sprain apparatus were collected using a 12-camera motion analysis system.
- Independent-samples t-tests were employed for statistical analysis.
Main Results:
- Individuals with CAI exhibited significantly lower maximum ankle plantarflexion angles compared to controls.
- CAI participants demonstrated significantly higher maximum hip flexion, hip abduction, and knee abduction angles.
- Increased maximum foot toe-out angles were observed in individuals with CAI.
Conclusions:
- Individuals with CAI adopt a more cautious landing strategy.
- These altered landing biomechanics may contribute to the risk of re-injury.
- Findings provide insights into neuromuscular control deficits associated with CAI.
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