Question

Why do we get muscel cramps after heavy excercise?

Answer 1

Muscle cramp is an involuntary sudden contraction of muscle. Muscle cramps are caused due to over usage of muscle i.e. long run, rapid exercise etc. Cramps are also caused due to dehydration, muscle strain, holding in position for a long time.
After a strenuous exercise muscles experience lack of oxygen. In the absence or insufficiency of oxygen, they respire anaerobically thereby producing lactic acid. The accumulation of lactic acid causes cramps in muscles.

Answer 2

•Dehydration: One of the major reasons why is dehydration because it causes you to lose potassium, sodium, magnesium and other vital minerals and salts from the body. This results in salt imbalance in the body giving rise to painful muscle cramps after heavy exercise.

hope this helps you