For example the stress applied to the Achilles tendon while standing or slowly raising the heels at constant speed is unlikely to exceed the ultimate strength of the tendon. Remembering that the stres...For example the stress applied to the Achilles tendon while standing or slowly raising the heels at constant speed is unlikely to exceed the ultimate strength of the tendon. Remembering that the stress applied to a material is the applied force divided by the cross-sectional area, we understand that large forces associated with high accelerations can lead directly to injury level stress on tissues.
