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The Difference in Achilles Tendon Loading within Immobilizing Boots Based on Ankle Angle, Boot Type, and Walking
Todd J Hullfish1, Madison M Woods1, Michelle P Kwon1
1Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Orthopaedic Journal of Sports Medicine
|November 4, 2024
Summary
Achilles tendon loading during rehabilitation is significantly affected by ankle angle and boot type. Modifying these factors can optimize healing and improve patient outcomes after Achilles tendon rupture.
Area of Science:
- Biomechanics
- Orthopedics
- Sports Medicine
Background:
- Achilles tendon rupture is a common injury requiring boot immobilization and progressive rehabilitation.
- The impact of ankle angle, boot type, and walking speed on Achilles tendon loading during recovery is not well understood.
Purpose of the Study:
- To investigate how different immobilization parameters influence Achilles tendon loading.
- To identify key factors that can be modified to optimize rehabilitation protocols.
Main Methods:
- A descriptive laboratory study involving ten healthy young adults.
- Participants walked in three different immobilizing boots at varying speeds.
- Achilles tendon loading was measured using instrumented insoles within the boots.
Main Results:
- All tested boots and immobilization styles reduced Achilles tendon loading compared to normal walking.
- Ankle angle constraint had the greatest impact, followed by boot construction and walking speed.
Conclusions:
- Ankle angle, boot type, and walking speed are modifiable parameters that influence Achilles tendon loading during rehabilitation.
- Understanding these effects allows for tailored rehabilitation strategies to enhance functional recovery.
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