Research into ankle injury prevention

Question 1

why was it considered to be worthwhile to research into the prevention of ankle sprain injuries

Answer 1

very common injury
but only 15% of people seek medical attention
repeated number of sprains lead to higher instability

Question 2

what is the combined aetiology of inversion injury

Answer 2

increased supination moment due to medially deviated GRF

this then creates a vigorous twisting torque which causes rapid ankle inversion

pernoneal muscle reaction is too slow to counteract this (takes around 176 millseconds, sprain occurs after 40 milliseconds)

ligament is stretched very vigorously and therefore is damaged