AI Article Synopsis
- Ankle orientation and stiffness measurements are crucial for monitoring rehabilitation progress, but current assessment methods have limitations, especially those relying on manual manipulation.
- This study introduces a new ankle assessment technique utilizing position sensors and multi-axis load cells, suitable for both manual and automatic testing across multiple degrees-of-freedom.
- Preliminary evaluations with nine subjects showed the device's measurements of ankle orientation and stiffness were consistent with established methods and demonstrated high reliability, with strong statistical correlations.
Article Abstract
The measurement of ankle orientation and stiffness can provide insight into improvements and allows for effective monitoring during a rehabilitation program. Existing assessment techniques have a variety of limitations. Dynamometer based methods rely on manual manipulation. The use of torque meter is usually for single degree-of-freedom (DOF) devices. This study proposes a novel ankle assessment technique that can be used for multiple DOFs devices working in both manual and automatic modes using the position sensor and the multi-axis load cell. As a preliminary evaluation, an assessment device for ankle dorsiflexion and plantarflexion was constructed. Nine subjects participated to evaluate the effectiveness of the assessment device in determining ankle orientation and stiffness. The measured ankle orientation was consistent with that from the NDI Polaris optical tracking system. The measured ankle torque and stiffness compared well with published data. The test-retest reliability was high with intraclass correlation coefficient (ICC2, 1) values greater than 0.846 and standard error of measurement (SEM) less than 1.38.
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| http://dx.doi.org/10.1016/j.jbiomech.2015.06.012 | DOI Listing |
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