you might have injured your knee joint while exercising. this is giving you stiffness and tightness. rest to the joint and application of pain balms/spray will reduce the symptoms.
stiffness tightness and minor swelling on knee after exercising with no pain? . i was playing soccer yesterday and i was running around and shooting like you would and for some reason at one point my knee started feeling weird. there was no pop or anything. i went home and then the knee started to feel really stiff and tight i can't fully bend it since it feels like it's going to explode. extending the knee also feels weird. there was a bit of pain yesterday a few hours after but now i feel nothing. i've never had any knee problems and i'm 17. what could this be?