nutation
During nutation what motion of the sacrum occurs
What is flexion?
In which direction does the sacrum move
What is posterior sacral rotation?
Name one symptom that may occur with nutation and counternutation
What is low back pain, altered gait patterns, or SI joint dysfunction?
This muscles insertion is the superior border of the greater trochanter of the femur
What is piriformis?
This ligament becomes taut during nutation
What is the sacrospinous ligament?
In which direction does gravity affect the SI joint
In which direction does the lumbar bend to extend the sacrum?
What is extension
What is the SI Joint?
These muscles action includes internal rotation and hip abduction
What are TFL, Glute Med & Glute Min?
The SIJ is what type of joint
What is diarthrodial synovial joint?
In what direction does the coccyx move relative to the ilium
What is posteriorly?
What ligament opposes counternutation
What is the SI ligament?
This diagnostic technique involves physically examining and feeling the SI joint to assess nutation or counternutation
What is palpation?
This muscle shares an insertion with the illiacus muscle and moves around the SI joint
What is Psoas Major?
What is suspension bridge?
What is independently?
This is muscle supports the SI ligament
What is multifidus?
Why are nutation and counternutation important as PTs
What is they allow PTs to manage low back and pelvic pain?
This adductor muscle participates in counternutation
What is adductor longus?
In sacral nutation, which ligament is responsible for limiting excessive anterior rotation of the sacrum?
What is anterior sacroiliac ligament?
What type of excess absorption may cause nutation
What is shock absorption?
In most individuals this motion is limited to how many milimeters?
Hint: It's less than 10
What is 2 to 4 mm?
How do nutation and counternutation participate in performance
What is they distribute weight of forces properly?
What trunk muscles are around the SI joint that may participate in nutation or counternutation
What are abdominal oblique muscles?
During counternutation, which joint experiences a posterior rotation
What is the sacrococcygeal joint?