Originally Posted by
Nat Turner
BTW here is a study if found interesting about ankle sprains,
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2724472/
Some recent studies reported that players with a history of ankle sprain, players wearing shoes with air cells in the heel, and players who did not stretch before exercising were 4.9, 4.3 and 2.6 times more likely to sustain an ankle sprain injury [
57]. People with inferior single leg balance [
58] and overweight [
59] were 2.4 and 3.9 times more likely to have sprain injury respectively. Reduced ankle dorsiflexion range [
60], the use of artificial turf for soccer [
61] and having a posteriorly positioned fibula [
62] were also reported as risk factors. In 2005, Willems and coworkers [
63] investigated some dynamic risk factors during gait in related to ankle sprain injury. They reported that for subjects who were at risk of sustaining an inversion sprain, a laterally situated center of plantar pressure was found at initial contact during the stance phase. The same research group also reported the intrinsic risk factors for inversion ankle sprain for male and female. For male, a slower running speed, less cardiorespiratory endurance, less balance ability, decreased dorsiflexion muscle strength, decreased dorsiflexion range of motion, less coordination ability, and faster reaction of the tibialis anterior and gastrocnemius muscles were the significant risk factors [
64]. For female, a less accurate passive joint inversion position sense, a higher extension range of motion at the first metatarsophalangeal joint, and a less coordination of postural control were the major risk factors [
65]. However, we have to be aware that these risk factors are only some correlations with ankle ligament sprain injury. They may not be the direct cause, or the aetiology of ankle ligament sprain.
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Nike is the only company that uses Air Cells, both zoom and max air.
