股また割わり

noun

extreme leg-stretching exercise; crotch flexibility exercise

A sumo training exercise where the wrestler sits in a wide straddle and leans forward to stretch the inner thighs and groin. Used to improve flexibility and prevent injury.

• 力りき士しは毎まい朝あさ、股また割わりで体からだを柔やわらかくする。

  Sumo wrestlers loosen up their bodies with the matawari exercise every morning.