How do muscles change shape when they are passively lengthened?

Muscles are often referred to as ‘motors’ that drive human and animal movements. This analogy certainly captures the important role of muscles as active generators of force and movement. However, it sells the equally important passive properties of muscles short. Most of us will only appreciate the importance of passive […]

Human muscles fascicles: what can ultrasound and diffusion tensor imaging reveal?

Following a stroke or spinal cord injury some people develop stiff joints, sometimes referred to as contracture. It is not well understood why contractures develop. Also, it is not clear whether they result from changes in the muscle or the tendon, which is why researchers and clinicians are very interested […]