![백 익스텐션 해서 허리 좋아지셨나요? [힙업 특화]](https://krtube.net/image/WhZ1Qzfp9So.webp)
백 익스텐션 해서 허리 좋아지셨나요? [힙업 특화]
#백익스텐션 #척추기립근 #둔근 [참고자료] -Fundamentals of Chiropractic CHAPTER 14 -Changes in the mechanical properties of the trunk in low back pain may be associated with recurrence
#백익스텐션 #척추기립근 #둔근 [참고자료] -Fundamentals of Chiropractic CHAPTER 14 -Changes in the mechanical properties of the trunk in low back pain may be associated with recurrence
