... to establish whether a trade-off necessarily exists between power and efficiency, we investigated the effects of asymmetric muscle length trajectories on the maximal mechanical cycle-average power output and initial mechanical efficiency ( E i ). Work and heat were measured in vitro in a mouse soleus muscle...

...Graham N. Askew; Richard L. Marsh ABSTRACT The effects of length trajectory on the mechanical power output of mouse soleus and extensor digitorum longus (EDL) muscles were investigated using the work loop technique in vitro at 37 °C. Muscles were subjected to sinusoidal and sawtooth cycles...