Determination of muscular fatigue in elite runners.

摘要: This study analyses the changes in electromyographic activity (EMG) of six major muscles leg during an incremental running test carried out on a treadmill. These muscles, gluteus maximus (GM), biceps femoris (BF), vastus lateralis (VL), rectus (RF), tibialis anterior (TA) and gastrocnemius (Ga) are known to have quite different functions running. The aim this was develop methodology adapted analysis integrated EMG (iEMG) results, chronology onset fatigue involved Nine well-trained subjects [VO(2max) 76 (2.9) ml.min(-1).kg(-1)] took part study. They completed protocol consisting 4 min stages, incrementally increasing speed until exhaustion. signal recorded ten bursts activation analysed separately at 45 s 3 40 each stage. During running, consideration alteration stride frequency with either increase or appears be indispensable assessment muscular fatigue. allows comparison between various stage speeds by use common working units. Distance seems only unit that thus determination appearance biarticular hip-mobilising (RF BF), which present two one cycle, show earliest signs