Question

when an sports man runs, he gets muscle cramps. why?

Answer 1

There is a lack of oxygen in his muscle cells anothe pathway for brewakdown is akenits converted to lactic acid which accumilates in our muscles,When an aerobic respiration takes place in sprotman muscles, then glucose  is converted to lactic acid with the release of small amount of energy. lactic acid which accumilates in our muscles.........
HOPE IT HELPS U...

Answer 2

hey|!!.

some part of body would be not active .and they don't countinously work.then the not active part not want to do work they want rest but sport man runs they didn't give rest and he want they are free to rest all time.

ok