Gait Characteristics And Plantar Pressure In College Basketball Athletes

Objective:Through gait analysis and plantar pressure measurement to research the differences of gait characteristics and plantar pressure between normal students and college basketball athletes, the distribution of the injuried students as well as the gait changes.Methods:Subjects are07～09grades of74college basketball athletes (21female,53male) from competitive sports institute of Beijing Sports University. First, exam the situation of subjects’knees according to aclinical Diagnostic criteria of knee i njuiry. Then the subjects wore analyzed by three-dimensional gait analysis system and Footscan USB2system. Last, divided the subjects by sex and the situation of knee.Results:1. In college basketball athletes,60athletes had knee injuries accounting for81.08%of the injuries. There were no significant different rate of knee injuries between female and male.2. The percentage of stance phase, stride length, walking speed, maximum knee flexion angle,hip and ankle flexion angle range were significant differences between normal students and athletes, while plantar pressure distribution was almost same.3. The step length, walking speed, maximum knee flexion angle, ankle flexion angle range and hip flexion angle range were significant differences between female and male athletes, while plantar pressure distribution was same.4.The percentage of stance phase, hip flexion angle range and maximum knee flexion angle were significant differences between male uninjuried grounp and injuried grounp. The step length, stride length ware significant differences between female injuried grounp and control grounp.5. Compared with male uninjuried grounp, male bilateral sides injuried grounp percentage of stance phase and maximum knee flexion at early stance were significantly reduced, while male unilateral injuried grounp hip flexion angle range was significantly greater. Compared with male uninjuried grounp and uninjuried side of male unilateral injuried grounp, injuried side of male unilateral injuried grounp maximum knee flexion at early stance were significant differences.Conclusion:1. College basketball athletes were at high risk of knee injury, but the main injury was minor injury.2. Gait characteristics were significant differences between normal students and athletes. Athletes percentage of stance phase and ankle flexion angle range were significantly reduced than normal stundents, stride length and walking speed were significantly greater.3. Gait characteristics were significant differences between between female and male athletes, whi le plantar pressure distribution was same.4. Gait changes of knee injuried athletes were percentage of stance phase induced, maximum knee flexion angle, and hip flexion angle range increased, while plantar pressure distribution was no changed.5. Gait changes of unilateral injuried athletes were uninjuried side hip flexion angle range and stride length increased, injuried side maximum knee flexion at early stance increased.6. Gait changes of bilateral sides injuried athletes were percentage of stance phase and maximum knee flexion at early stance decreased.