上じょう半はん身しんを起おこす

expression, godan verb (-su)

sit up; raise one's upper body

Describes the action of lifting the upper body from a lying or reclining position, often into a sitting posture.

• 彼かれはベッドで上じょう半はん身しんを起おこして、水みずを飲のんだ。

  He sat up in bed and drank some water.

• 腹ふっ筋きん運うん動どうで上じょう半はん身しんを起おこすときは、腰こしに気きをつけてください。

  When raising your upper body during sit-ups, be careful of your lower back.