Can the electromyographic fatigue threshold be determined from superficial elbow flexor muscles during an isometric single-joint task?
作者： François Hug , Antoine Nordez , Arnaud Guével
DOI: 10.1007/S00421-009-1114-6
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摘要: The purpose of this study was to compare the electromyographic fatigue threshold (EMGFT) values determined simultaneously from superficial elbow flexor muscles during an isometric single-joint task. Eight subjects performed flexions at randomly ordered percentages maximal voluntary contraction (20, 30, 40, 50 and 60%). During these bouts, (EMG) activity measured in anterior head Deltoid, lateral Triceps brachii, Brachioradialis both short long Biceps brachii. For each subject muscle, EMG amplitude data were plotted as function time for five submaximal bouts. slope coefficient versus linear relationships against force level. EMGFT y-intercept relationship considered valid only if following criteria met: (1) significant positive regression (P < 0.05) between coefficient, (2) adjusted determination greater than 0.85, (3) a standard error below 5% contraction. could be one muscle (the brachii) three out eight (mean value = 24.9 ± 1.1% contraction). lack most (5/8) explained by putative compensations which indirectly observed some subjects. In way, should studied more simple movement i.e., ideally implying mainly muscle.
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M. Gonçalves, Adalgiso Coscrato Cardozo, Electromyographic fatigue threshold of erector spinae muscle induced by a muscular endurance test in health men. Electromyography and clinical neurophysiology. ,vol. 43, pp. 377- 380 ,(2003)
S. J. Garland, R. M. Enoka, L. P. Serrano, G. A. Robinson, Behavior of motor units in human biceps brachii during a submaximal fatiguing contraction Journal of Applied Physiology. ,vol. 76, pp. 2411- 2419 ,(1994) , 10.1152/JAPPL.1994.76.6.2411
Mauro Gonçalves, S. R. Dias da Silva, Dynamic and isometric protocols of knee extension: effect of fatigue on the EMG signal. Electromyography and clinical neurophysiology. ,vol. 46, pp. 35- 42 ,(2006)
T. Moritani, T. Takaishi, T. Matsumoto, Determination of maximal power output at neuromuscular fatigue threshold. Journal of Applied Physiology. ,vol. 74, pp. 1729- 1734 ,(1993) , 10.1152/JAPPL.1993.74.4.1729
François Hug, Jean Marc Drouet, Yvan Champoux, Antoine Couturier, Sylvain Dorel, Interindividual variability of electromyographic patterns and pedal force profiles in trained cyclists. European Journal of Applied Physiology. ,vol. 104, pp. 667- 678 ,(2008) , 10.1007/S00421-008-0810-Y
M.A. Johnson, J. Polgar, D. Weightman, D. Appleton, Data on the distribution of fibre types in thirty-six human muscles Journal of the Neurological Sciences. ,vol. 18, pp. 111- 129 ,(1973) , 10.1016/0022-510X(73)90023-3
S.J Garland, L Griffin, T Ivanova, Motor unit discharge rate is not associated with muscle relaxation time in sustained submaximal contractions in humans Neuroscience Letters. ,vol. 239, pp. 25- 28 ,(1997) , 10.1016/S0304-3940(97)00885-9
C. Russell Hendrix, Terry J. Housh, Glen O. Johnson, Joseph P. Weir, Travis W. Beck, Moh H. Malek, Michelle Mielke, Richard J. Schmidt, A comparison of critical force and electromyographic fatigue threshold for isometric muscle actions of the forearm flexors European Journal of Applied Physiology. ,vol. 105, pp. 333- 342 ,(2009) , 10.1007/S00421-008-0895-3
David J. Pavlat, Terry J. Housh, Glen O. Johnson, Richard J. Schmidt, Joan M. Eckerson, An examination of the electromyographic fatigue threshold test. European Journal of Applied Physiology. ,vol. 67, pp. 305- 308 ,(1993) , 10.1007/BF00357627
Hermie J Hermens, Bart Freriks, Catherine Disselhorst-Klug, Günter Rau, Development of recommendations for SEMG sensors and sensor placement procedures Journal of Electromyography and Kinesiology. ,vol. 10, pp. 361- 374 ,(2000) , 10.1016/S1050-6411(00)00027-4