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Shear wave velocity is sensitive to changes in muscle stiffness that occur independently from changes in force.

Clinical assessments for many musculoskeletal disorders involve evaluation of muscle stiffness, although it is not yet possible to obtain quantitative estimates from individual muscles. Ultrasound elastography can be used to estimate the material properties of unstressed, homogeneous, and isotropic materials by tracking the speed of shear wave propagation; these waves propagate faster in stiffer materials. Although elastography has been applied to skeletal muscle, there is little evidence that¡­

Leveraging Joint Mechanics Simplifies the Neural Control of Movement.

Estimating the dimensionality of the manifold underlying multi-electrode neural recordings.