this may be a stupid (atleast unusual) question, but since cardio works your heart, which is a muscle, can it get sore just like any other muscle?
i worked my ass of in a game of 5-on-5 basketball the other day for about 50 minutes to an hour, and my heart was pounding harder than usual.
my heart has felt a little weird the past couple of days, and today i tried 60 BW squats to test it and it definately was sore.
is DOMS or something like it possible, or could this be something else that i should look into?
thanks in advance