bridge

Question 1

What’s happening at joints

Answer 1

knee: flexed
hip: extends, flexes
shoulder: extended
cervical spine: flexion
lumbar: extension

upwards: concentric
down: eccentric

Question 2

peak flexion of knee

Answer 2

estimate: 135 degrees
kinovea: greater trochanter, lateral condyle of femur, lateral malleolus of fibula

Question 3

peak shoulder extension

Answer 3

estimate: 45
mid axillary line, greater tubercle, lateral epicondyle
angle between arm and trunk

Question 4

prime movers

Answer 4

hamstrings + gastrocnemius flexing knee

gluteus maximus + hamstrings extending hip
iliacus, psoas major, rectus femoris flexing hip

deltoid extending shoulder

Question 5

form

Answer 5

rotator cuffs
triceps, arm extension used to stabilise

gluteus medius + minimis keeping pelvis level

abdominals + erector spinae stabilising trunk

gastrocnemius, soleus, FDL, FHL, tibialis posterior plantarflexing foot

cervical flexion: sternocleidomastoid

lumbar extension: concentric, erector spinae, multifidus

Question 6

gluteus maximus

Answer 6

Origin: Posterior gluteal line, sacrum + coccyx
Insertion: iliotibial tract of tibia + gluteal tuberosity

range: outer > inner > outer

Contracts to extend thigh at hip joint as hips rise

Question 7

quadriceps

Answer 7

origin: AIIS, supra acetabular groove of ilium
insertion: tibial tuberosity, QF tendon, patellar ligament

range: inner > outer > inner

flexes hip during downwards phase