noun
hamstring
Anatomical term for the group of muscles at the back of the thigh. Used in medical, sports, and fitness contexts.
ランナーはハムストリングのストレッチを欠かさない。
Runners never skip hamstring stretches.
ハムストリングを痛めて、しばらく運動を休んだ
I injured my hamstring and took a break from exercise for a while.