Physics-based predictive simulations have been shown to capture many salient features of
human walking. Yet they often fail to produce realistic stance knee and ankle mechanics …

Hundred years ago, Fenn demonstrated that when a muscle shortens faster, its energy
liberation increases. Fenn's results were the first of many that led to the general …

There are relatively few running studies that have attempted to prospectively identify
biomechanical risk factors associated with Achilles tendon (AT) injuries. Therefore, the aim …

In vivo, the force–velocity relation (F–v–r) is typically derived from the torque–angular
velocity relation (T–ω–r), which is subject to two factors that may influence resulting …

Background Achilles tendon rupture appears to alter stiffness and length of the tendon.
These alterations may affect the function of tendon in force transmission and in energy …

Previous in vitro and in situ studies have reported a shift in optimal muscle fibre length for
force generation (L0) towards longer length at decreasing activation levels (also referred to …

Achilles tendon (AT) mechanical properties can be estimated using an inverse dynamic
approach, taking into account the tendon internal moment arm (IMA) and its kinematic …

Much of our understanding of in vivo skeletal muscle properties is based on studies
performed under maximal activation, which is problematic because muscles are rarely …

When an active muscle is stretched and kept isometrically active, the resulting force is
enhanced compared to a purely isometric reference contraction at the same muscle length …

Stretch-shortening cycles (SSCs) outperform shortening contractions preceded by isometric
contractions in terms of enhanced force/torque, work, and power production during …