장요근에 대한 통찰과 상상력
대요근(psoas major, 소요근(psoas minor), 장골근(iliacus)
장골근과 요방형근의 역학적 관계
1. 장요근과 척추기립근의 장력관계
2. 장골근과 요방형근의 장력관계
3. 소요근과 치골근의 장력관계
스트레칭과 isolation exercise 두가지 관점에서 해결책을 생각해야
1. 스트레칭은 isolated스트레칭이 아니라 장력관계로 연결된 스트레칭을 해결책으로 고려
2. exercise는 장요근 운동은 필요치 않음. 그래서 어떤 근력을 강화할 것인가에 대한 고민이 필요함.
결국은 코어운동!!
lumbopelvic-hip complex, 상부운동사슬과 하부운동사슬의 최초 연결자
속근과 지근의 혼합근육
심부전방선 근육
고관절 굴곡근
The psoas major /ˈsoʊ.əz/ is a long fusiform muscle located on the side of the lumbar region of the vertebral column and brim of the lesser pelvis. It joins the iliacus muscle to form the iliopsoas. In less than 50 percent of human subjects,[1] the psoas major is accompanied by the psoas minor. In mice, it is mostly a fast-twitching, type II muscle,[2] while in human it combines slow and fast-twitching fibers.
As part of the iliopsoas, psoas major contributes to flexion and external rotation in the hip joint. On the lumbar spine, unilateral contraction bends the trunk laterally, while bilateral contraction raises the trunk from its supine position.[5]
It forms part of a group of muscles called the hip flexors, whose action is primarily to lift the upper leg towards the body when the body is fixed or to pull the body towards the leg when the leg is fixed.
For example, when doing a situp that brings the torso (including the lower back) away from the ground and towards the front of the leg, the hip flexors (including the iliopsoas) will flex the spine upon the pelvis.
Owing to the frontal attachment on the vertebrae, rotation of the spine will stretch the psoas.
Tightness of the psoas can result in lower back pain by compressing the lumbar discs.[6]
