... resistance exercise over 12 consecutive days, consisting of high Achilles tendon (AT) strain cyclic loading (90% MVC) with one leg once a day (Leg T1 ) and the alternate leg three times a day (Leg T3 ). Exercise-related changes in TS MTU mechanical properties and serum concentrations of extracellular matrix...

...Eman Y. Merza; Stephen J. Pearson; Glen A. Lichtwark; Peter Malliaras ABSTRACT The Achilles tendon (AT) exhibits volume changes related to fluid flow under acute load which may be linked to changes in stiffness. Fluid flow provides a mechanical signal for cellular activity and may be one mechanism...

.... Muscle coordination Calf Achilles tendon Activation Electromyography Coordination at multiple levels, e.g. between muscles within a synergistic group, over one or more joints, and between limbs, is required to achieve the vast majority of movements. With multiple muscles able to act upon...

... subjects performed a single-leg landing task, with and without added mass. Ultrasound measurements were combined with three-dimensional kinematics and kinetics to determine instantaneous length changes of MTUs, muscle fascicles, Achilles tendon and combined elastic elements. Gastrocnemius and soleus MTUs...

... of rat Achilles tendon (lateral view). The individual tendons of SO and lateral/medial gastrocnemius are distinct in the proximal portion of the tendon, but merge distally. (C–E) Schematic representation of the interaction between SO and LG tendon bundles within the Achilles tendon. Red and green dots...

...Chris Tijs; Jaap H. van Dieën; Huub Maas ABSTRACT Triceps surae muscles are mechanically connected by the shared Achilles tendon and by epimuscular myofascial connections. We aimed to assess the effects of proximal lengthening of gastrocnemius and plantaris muscles, imposed by changes in knee angle...

...Jussi Peltonen; Neil J. Cronin; Janne Avela; Taija Finni SUMMARY Stiffness of the human Achilles tendon (AT) was determined in vivo before and after a single bout of hopping exercise. It was hypothesized, based on published data using in vitro specimens, that a reduction in AT stiffness may occur...