Pain in left medial side of knee doing ham curls
I was laying on my back with two tennis balls taped together to roll along my spine, popping my back. Using my heals to curl my hams in order to move my body across the tennis balls I felt a very sharp pulling pain on the left medial side of my left knee. I also have pain on the top of my right knee during half squats with dumbbells-mostly hurts at the bottom and coming up. Any thoughts??? Rest? Treatment?
Background: 33 year old male, 6'1 284lbs. Do legs every 3-4 days.
I use the lying down leg curl machine as well.