Translation

仰向けの / あおむけに横たわった / 背臥位の

Meaning

Supine means lying on the back with the face or front of the body upward. It is common in medical, anatomy, exercise, and instruction contexts. The trap is confusing it with prone, which means lying face down.

Examples

• 患者は仰向けの姿勢で検査台に横たわりました。
  The patient lay supine on the examination table.
• この運動は仰向けの姿勢から始めてください。
  Start this exercise in a supine position.