The posterior compartment of leg is the largest but it diminishes markedly as it approaches the ankle. Flexor digitorum longus is thin and pointed proximally and gradually widens as it descends in the posterior compartment of leg. It arises from the posterior surface of the tibia medial to tibialis posterior from just below the soleal line to within seven or eight cm of the distal end of bone; ...

To investigate the effects of muscle fatigue on force sense at the ankle joint, 10 young healthy adults were asked to perform an isometric contra-lateral force ankle-matching task in two experimental conditions of: (1) no-fatigue and (2) fatigue of the plantar-flexor muscles. Measures of the overall accuracy and the variability of the force matching performances were determined using the absolu...

Stiffness and spasticity are common neurologic symptoms that affect limb movements. We describe a patient who presented with ill-defined stiffness and an exaggerated startle response, who on serial examinations had variable degrees of stiffness and marked hyperreflexia but with plantar flexor signs. Stiff-person syndrome (SPS) was considered when axial stiffness became evident and was confirmed...

Stroke patients usually experience considerable spasticity and/or contracture around the ankle joint and this may be attributed to the changes in mechanical properties of muscles, especially the plantar flexor muscles. A better understanding of the changes of muscle properties in vivo may provide guidance to the rehabilitation and other treatments. Ultrasonography has been used to study muscle ...