The effects of patellar bracing on quadriceps EMG activity during isokinetic exercise

摘要: Patellofemoral pain syndrome is a prevalent ailment experienced by number of individuals participating in regular physical activity. Little information available concerning the effects patellofemoral bracing on function extensor mechanism malalignment patients. The purpose this study was to examine patellar relation isokinetic exercise. Sixteen subjects exhibiting symptoms were tested an dynamometer with and without brace. testing procedure involved three maximal concentric/eccentric quadriceps contractions at angular velocity 1800/s. Electromyographic (EMG) activity VastillS medialis obliqus (VMO) vastus lateralis (VL) recorded during testing. Integrated EMG (IEMG) analyzed three-way ANOV A repeated measures (P < 0.05). results indicated that application patell;ar brace resulted significantly smaller IEMG signal than non-braced condition both VMO VL concentric eccentric found be greater regardless test or Moreover, also all conditions clinical implication from suggests muscle activation reduced use Thlis type may provide mechanical support joint as evidenced reduction quadricelps knee extension Copyright @ 1996 Elsevier Science Ireland Ltd.