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Updated: Jan 30, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
Joint mobilization and static stretching for individuals with chronic ankle instability - A pilot study
Chase M Feldbrugge1, Megan M Pathoomvanh1, Cameron J Powden2
1Old Dominion University, School of Physical Therapy and Athletic Training, 3120 Health Sciences Building, Norfolk, VA, 23529, USA.
The timing of joint mobilization with calf stretching does not impact treatment effectiveness for chronic ankle instability (CAI). However, the combined approach improves ankle range of motion and function.
Area of Science:
- Orthopedics
- Sports Medicine
- Physical Therapy
Background:
- Chronic ankle instability (CAI) affects numerous individuals, leading to reduced function and increased risk of re-injury.
- Current interventions for CAI often involve a combination of manual therapy and exercise, but optimal timing remains unclear.
Purpose of the Study:
- To analyze the effects of joint mobilization timing during a 4-week calf stretching program on outcomes for individuals with CAI.
- To investigate the combined effects of joint mobilization and calf stretching on clinician- and patient-oriented measures.
Main Methods:
- A randomized two-group pretest-posttest design was employed in a laboratory setting.
- Ten adults with CAI were allocated to either an early-mobilization or late-mobilization group, both undergoing a 4-week calf stretching intervention with mobilization in the first or last two weeks, respectively.
- Outcome measures included range of motion, postural control, and patient-reported scales (FAAM, DPA, FABQ).
Main Results:
- No significant differences were observed between the early-mobilization and late-mobilization groups post-intervention.
- Significant improvements were noted in Foot and Ankle Ability Measure (FAAM) for Activities of Daily Living, Disablement in the Physically Active Scale (DPA), Fear-Avoidance Beliefs Questionnaire (FABQ) for Physical Activity, and dorsiflexion range of motion (ROM) from pre- to post-intervention.
- No other significant pre- to post-intervention differences were detected.
Conclusions:
- Preliminary findings suggest that the timing of joint mobilization, when combined with calf stretching, does not influence treatment efficacy for CAI.
- The combination of joint mobilization and calf stretching effectively improves dorsiflexion ROM and self-reported function in individuals with CAI.
- The observed improvements are comparable to those reported for isolated joint mobilization or stretching interventions.
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