Common sites for overuse strain injuries in musicians or gym-goers are the musculotendinous junction and the transition zone between muscle and long tendons.

“more commonly there's two sites where you can get the most common injury and you know this in Spades is the musculotendinous junction you talked about The Eccentric loading and as there's two spots for that there's one right here and there's one right here there's these short tendons that attach to the bones up here and you can get the muscle tendonjunction injured there and you can get where the tendons become the long tendons and the muscle that that um that transition zone and those are the two places”