The Effects Of Balance Training Program On The Low Extreme Proprioception And Peroneal Latency During Sudden Ankle Inversion

Objective:The aim of the present study was to investigate the effects of wobble board training on the low extreme proprioception and the muscle reaction times in the normal health people, and to determine whether the low extreme proprioception of normal health people was improved after a proprioceptive exercise program.Method:Sixty normal health peoples were recruited to participate in the proprioceptive exercise program, who had not low extremity injury or functionally unstable ankle. Finally, fourty one participants succeeded in completing the exercise program. Paricipants were assigned to three groups:control (n=14), wobble board training (n=13) and balance ball training (n=14). The wobble board training group and the balance ball training group underwent a monitored 8-week exercise programme (50 min per session, three times per week). Using surface electromyography (sEMG) the latency of the soleus, tibialis anterior (TA) and peroneus longus (PL) were recorded in response to a sudden 30°ankle inversion. The ankle joint position sense (JPS) was tested in a passive and positive angle reproduction test. The result of Mmax:Hmax and H-M latency was measured through Hoffmann Reflex.Result:①The latency of the soleus, tibialis anterior (TA) and peroneus longus (PL) was significantly shorter in subjects with the wobble board training group, individually shorter 9.54%,10.11%,12.79%(P＜0.01, P＜0.05, P＜0.01) than befor the wobble board training; also significantly shorter in subjects with the balance ball training group, individually shorter 12.57%,9.13%,11.29%(P＜0.01, P＜0.05, P＜0.01); there is not shown to be significantly different in control group.②The result of Mmax:Hmax was not shown to be significantly different between before and after exercis program in both the wobble board training group and the balance ball training group(P＞0.05); The result of H-M latency, also was not shown to be significantly different between before and after exercise program in both the wobble board training group and the balance ball training group(P＞0. 05).③Both the wobble board training group and the balance ball training group, the results showed no significantly different in ankle joint position sense (JPS) in a passive and positive angle reproduction test(P＞0.05).Conclusion:Posting wobble board training and balance ball training, both groups showed a significant decrease in muscle onset latency (P＜0.05). The findings indicate that, even normal health people, wobble board exercise and balance ball exercise reduces the likelihood of sudden ankle inversion sprains. The wobble board exercise and balance ball exercise program can be recommended for prevention of sudden ankle inversion injuries.