Who is most likely to get them

A muscle cramp occurs when a contracted muscle can’t relax, causing pain and tightness.

The American Academy of Orthopaedic Surgeons says these factors increase the risk of getting a muscle cramp:

  Being a young child or infant.
  Being age 65 or older.
  Taking certain medications.
  Being overweight.
  Overexerting yourself.
  Being an athlete, particularly in the pre-season before the body is fully conditioned.