2007-05-08 14:22:39 · 5 answers · asked by runningman 1 in Health ➔ Diet & Fitness
Like tubebandit says, your muscles break down with strain (you intentionally do this when you exercise) and then grow back - plus some. This is how they get stronger.
But the pain is technically caused by lactic acid build up in the muscle from the breakdown process.
(I believe it's lactic... be right back with an edit).
*EDIT* Ok, that's the old medical theory apparently (I'm not a doctor, just listened in HS biology classes :P )
See:
http://en.wikipedia.org/wiki/Delayed_onset_muscle_soreness
2007-05-08 14:31:54 · answer #1 · answered by the_last_username_on_earth 2 · 2⤊ 1⤋
that's called delayed onset muscle soreness or DOMS. it's caused by microtrauma to skeletal muscle and a loss of calcium homeostasis in the muscle cell as a result of exercise.
2007-05-08 14:31:58 · answer #2 · answered by lv_consultant 7 · 3⤊ 0⤋
I don't know, but if you continue to exercise, they won't get sore any more. I used to lift weights, but never more than about an hour every other day. I don't think overdoing it is a good idea.
2007-05-08 14:33:59 · answer #3 · answered by Joe D 2 · 1⤊ 0⤋
when you exercise you actually tear your muscles,this is how they grow bigger it time it repairs itself it makes itself stronger,this is why it hurts.
2007-05-08 14:28:23 · answer #4 · answered by Anonymous · 2⤊ 0⤋
because you are in denial until then?
2007-05-08 14:32:47 · answer #5 · answered by ditdit 6 · 0⤊ 1⤋