But in this case it should not be regarded as a disease. The standard scientific medical community would regard it as the result of sudden trauma or strain to the infra-patellar tendon, with deterioration of the tendon's attachment to the tibia. Instead, it can be viewed as the result of repetitive or continuous strain on this tendon attachment by a series of processes or events. I have described previously in articles for Dynamic Chiropractic, and in my manual The Connection, how the AS ilium fixation relates to quadriceps tension. I will briefly review the process involved in created increased tension of the quadriceps tendon.
Exceptions can arise involving hypermobile dysfunction, such as thoracic hyperkyphosis.
Resultant increased stress is placed on the buttocks, the hamstrings, and the quadriceps. Naturally, increased stress is placed upon origins and insertions of these muscle masses. These muscles shorten due to continued stress. In the case of some or many cases of Osgood-Schlatter's disease, it can be called an associated disorder. Hypertonic quadriceps are shortened quadriceps, which tug on the infrapatellar tendon, especially during hip flexion.