triceps dip

Question 1

Whats happening at joints

Answer 1

shoulder: extension, hyperextension, retraction
elbow: extends, flexes
wrist: isometric extension
(trunk flexion)

downwards: eccentric
upwards: concentric

Question 2

peak flexion of elbow

Answer 2

estimation: 100 degrees
kinovea: greater tubercle + lateral epicondyle of humerus, ulnar styloid process

Question 3

peak shoulder extension

Answer 3

estimation: 90
mid axillary line, greater tubercle, lateral epicondyle
extended line from axilla > greater tubercle > upwards

Question 4

prime movers

Answer 4

deltoid + latissimus dorsi extending shoulder
rhomboids + trapezius retracting

biceps brachii flexing elbow
triceps brachii extending elbow

ED, ECRL + B, ECU extending wrist

Question 5

form

Answer 5

sternocleidomastoid keeping head erect
subclavius stabilising clavicle

rotator cuffs stabilising shoulder joint
multifidus, quadratus lumborum working eccentrically

abdominals stabilising core

Rf flexing hip
hamstrings + gastrocnemius flexing knee

soleus, FDL, FHL, tibialis posterior plantarflexing foot

FCU, FCRL flexing fingers to grip

Question 6

triceps

Answer 6

origin: infraglenoid tubercle of scapula, posterior humerus
insertion: olecranon

range: inner > outer > inner

eccentric as elbow bends, concentric as elbow straightens to lift body up