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Dynamic in-vivo subtalar joint kinematics measured using a skin marker based protocol: a face validity study
1a Sheffield Teaching Hospitals NHS Foundation Trust, Community Services.
Journal of the American Podiatric Medical Association
|June 25, 2014
Summary
This study validates a non-invasive skin marker protocol for measuring subtalar joint kinematics during walking. The method shows face validity for assessing in vivo foot and ankle motion.
Area of Science:
- Biomechanics
- Orthopedics
- Human Movement Analysis
Background:
- The subtalar joint's complex motion presents analytical challenges.
- Individual variations necessitate personalized kinematic assessment protocols.
- Non-invasive methods like skin-mounted markers are preferred for data collection.
Purpose of the Study:
- To evaluate the face validity of a skin-mounted marker protocol.
- To measure in vivo subtalar joint kinematics during gait.
- To establish a reliable method for individual kinematic analysis.
Main Methods:
- Thirty participants were enrolled with minimal exclusion criteria.
- A validated skin-mounted marker protocol and CODA MPX30 sensors were used.
- Kinematic data during walking were compared to previous bone-mounted marker studies.
Main Results:
- Subtalar joint motion data across three planes were feasible and within published ranges.
- Observed movement patterns were similar to, but not identical to, prior research findings.
- The protocol demonstrated acceptable outcomes compared to established methods.
Conclusions:
- The skin-mounted marker protocol shows face validity for assessing subtalar joint kinematics.
- The methodology provides feasible in vivo kinematic data during the gait stance phase.
- This approach supports individualized analysis of foot and ankle biomechanics.
