In patients with knee osteoarthritis (OA), pain and dysfunction cause a reflex inhibition on the quadriceps femoral muscle, and quadriceps weakness could accelerate damage to knee cartilage.

M innesota Twins third baseman Royce Lewis (quadriceps) said he received a platelet-rich plasma injection to help his right quadriceps muscle heal. Lewis suffered a serious quad strain on Opening ...

There was no history of use of anabolic steroids, previous local steroid injections, or tendinitis. A clinical diagnosis of bilateral quadriceps tendon rupture was made, and the patient was admitted ...

but all patients in the concentric group had been treated surgically or by sclerosing injections. Conclusions: In conclusion, eccentric, but not concentric, quadriceps training on a decline board, ...