muscle length testing

Question 1

how to perform

Answer 1

fix origin, elongate muscle opposite to concentric action, assess its resistance to passive lengthening

Question 2

contraindications / precautions

Answer 2

MSK: bony limit, recent fracture, acute tissue inflammation
CR:
CV:
N: acute pain with movement, no consent, neural mechanosensitivity

Question 3

purpose

Answer 3

identify changes in muscle extensibility that may be contribute to movement impairment, assess the resistance to passive movement

Question 4

principles

Answer 4

elongate slowly to avoid quick stretching of spindle/twitch contraction
for best accuracy patient shouldnt be in acute pain
assess end feel
ensure max lengthening

Question 5

structures

Answer 5

muscle & others being lengthened
bony origin

Question 6

how to know if normal

Answer 6

good quality of movement, low resistance, normal RoM when compared to normal side
muscular end feel
no change of symptoms through range