Achilles tendinopathy (AT) is a common overuse injury in running or jumping activities where the tendon is unable to properly respond to the load. AT increases tendon thickness while decreasing stiffness and function (1).
Studies have shown that tendon properties can be positively influenced by load (5,6). Therefore, AT has typically been treated conservatively through physical therapy, with eccentric calf strengthening exercises as the focus of the treatment (2).
Carlson, M.; Criswell, B.; Dean, D.; Gabourel, M.; Merchen, N.; Cuddeford, Tyler; and Keefer Hutchison, Marcey, "Changes in Achilles Tendon Thickness Following a 10 – Week Heavy Load Eccentric Exercise Program" (2019). Student-Faculty Research - School of Physical Therapy. 19.