Midterm Flashcards
What type of muscles are postural muscles?
Type I slow twitch
-tend to become short and tight
What type of muscles are phasic muscles?
type II
-tend to become weak and inhibited
Triceps Surae: Increase in dorflexion following knee flexion indicates tight ___
gastrocnemius
Triceps Surae: No increase in dorsiflexion following knee flexion indicates tight ___
Soleus
Normal range for Iliopsoas length
Passive hip extension 10-15 degrees beyond horizontal
Normal range for TFL length
Should have passive hip Adduction 15-20 degrees
Normal range for Hip Adductors
Should have passive hip abduction 15-25 degrees
Normal range for rectus femoris
Passive knee flexion ~135 degrees
If pt. cant bring femur parallel with the floor or lower during iliopsoas assessment, you may suspect tight ___. If you can’t bring the leg into springy passive abduction, you may suspect tight ___.
Iliopsoas
Adductors
Hip Extension Screen indicators
- Decreased Glute Max. Bulk
- Increased Hamstring Bulk
- Observation of spinal horizontal grooves or creases
- Anterior pelvic tilt
- Increased or asymmetrical paraspinal bulk
- Decreased trailing limb posture at terminal stance during gait
- Short step, normal step, short step, normal step
Abnormal patterns for Prone Hip Extension
- Altered firing order: more trunk muscle activation than hip extensor activation
- Anterior pelvic tilt/increased lumbar lordosis (iliopsoas, lumbar erector spinae hyperactivity)
- Knee flexion (synergistic dominance of hamstrings)
Hip Abduction Screen indicators
- Lateral shift or rotation of pelvis
- Asymmetrical height of iliac crest
- Adducted hips or varus position
- Positive result on single-leg stance test
- Trendelenburg sign or increased lateral pelvic shift during loading response during gait
Functional Screening for Hip Abduction:
Hip flexion indicates…
hip ext. rotation indicates…
Hip hiking indicates…
- TFL dominace/ tensor mechanism
- Piriformis
- QL
Normal muscle firing order for Hip Abduction
Glute Med, QL, TFL
“GQT, Abduct for me!”
Trunk extension should be __ than flexion and lateral flexion
greater