(2001) Inversion and Eversion Strengths in the Weight bearing Ankles of Young Women. American Journal of Sports Medicine. Ankle injuries rank as the most common injury in athletics today, and compared to men, women basketball players are 25 % to 60% more susceptible to spraining their ankles. The article began by hypothesizing that this rate is so high in women, because ankle-strength is due to an inversion-eversion muscle strength ratio that is associated with ankle injuries. And past experiments have proven that women, on average, have less muscle strength at the ankle than men. It was stated that this experiment was conducted for three reasons; Nonweight bearing studies tend to underestimate inversion and eversion strengths, no studies of inversion or eversion strengths have been reported in womens ankles bearing full body weight, and there are no sex comparisons of inversion and eversion strength in the ankle. Also, they wanted to see if there was a relation between ankle strength and shoe type. The experimenters tested the strength in the degree of the inward and outward motion of the ankle, and if shoe height would affect ankle strength development. They took twenty young women that were relatively the same height and weight and normally wore a size 8 shoe. The women were then scaled from 0 to10, based on self-reported habitual physical activity. Zero denoted inactivity and ten denoted sports at the Division I collegiate level. The data shows that the womens active range was measured with a goniometer. Their ankle strength in dorsiflexion-plantarflexion and inversion-eversion was tested by using an isokenetic dyanometer, and other strength tests. The results showed that both shoe height and ankle plantar flexion did not affect eversion movement development. Which meant that eversion strength was not affected by shoe type. This data was then compared to another experiment that used the same methods but was tested on males and f...
