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Dynamic in vivo subtalar joint kinematics measured using a skin marker-based protocol a face validity study
Journal of the American Podiatric Medical Association
|July 31, 2014
Summary
This study validates a noninvasive skin-mounted marker protocol for assessing subtalar joint kinematics during walking. The method provides feasible in vivo motion data comparable to previous studies.
Area of Science:
- Biomechanics
- Human motion analysis
- Orthopedics
Background:
- The subtalar joint's complex motion poses challenges for kinematic analysis.
- Interpatient variability necessitates individualized assessment protocols.
- Noninvasive, skin-mounted markers offer a practical approach for data collection.
Purpose of the Study:
- To evaluate the face validity of a skin-mounted marker protocol for measuring in vivo subtalar joint kinematics.
- To establish a reliable method for assessing individual foot and leg motion.
Main Methods:
- Thirty participants underwent motion capture using a validated skin-mounted marker protocol and CODA MPX 30 sensors during walking.
- Kinematic data were compared against findings from studies utilizing bone-mounted markers.
Main Results:
- The subtalar joint motion data across all three planes were feasible and within previously published ranges.
- Observed movement patterns showed similarities to, but not exact replication of, prior research findings.
Conclusions:
- The skin-mounted marker protocol demonstrates face validity for assessing in vivo subtalar joint kinematics.
- The method is suitable for evaluating motion during the stance phase of gait, accounting for individual variations.
