Fine-wire recordings of flexor hallucis brevis motor units up to maximal voluntary contraction reveal a flexible, nonrigid mechanism for force control
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We recorded for the first time single motor unit action potential trains in the flexor hallucis brevis, a short toe muscle, over the full range of maximum voluntary contraction. Its motor units are recruited up to very high (98%) recruitment thresholds with a substantial range of discharge rates. We further show high variability with crossover of discharge rates as a function of recruitment threshold both between participants and between motor units within participants.
2013 ◽
Vol 109
(12)
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pp. 2947-2954
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2010 ◽
Vol 108
(6)
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pp. 1530-1541
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1978 ◽
Vol BME-25
(3)
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pp. 236-243
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2008 ◽
Vol 33
(6)
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pp. 1086-1095
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2000 ◽
Vol 49
(1)
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pp. 157-169
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2001 ◽
Vol 86
(5)
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pp. 2144-2158
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2012 ◽
Vol 107
(11)
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pp. 3078-3085
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1999 ◽
Vol 9
(1)
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pp. 67-72
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