(ENG) 평생 가지고 살던 종아리알! 이 스트레칭으로 걸그룹 종아리를 만들 수 있습니다 [바로시작(3:48)]

Knotted and strained calf muscles we've developed for years, this body stretch will be the solution. [start at (3:48)]

1. Why do calf muscles get swollen over time and develop to be unproportionate and swollen?
2. Why have the efforts I have put in not work?

Body stretch for knotted calf muscles I haven't taken care of for years.