0000000001051757

AUTHOR

Roberto Merletti

showing 1 related works from this author

Multi-channel electromyography during maximal isometric and dynamic contractions.

2013

Motor unit behavior differs between contraction types at submaximal contraction levels, however is challenging to study during maximal voluntary contractions (MVCs). With multi-channel surface electromyography (sEMG), mean physiological characteristics of the active motor units can be extracted. Two 8-electrode sEMG arrays were attached on biceps brachii muscle (one on each head) to examine behavior of sEMG variables during isometric, eccentric and concentric MVCs of elbow flexors in 36 volunteers. On average, isometric (364 ± 88N) and eccentric (353 ± 74N) MVCs were higher than concentric (290 ± 73N) MVC (p0.001). Mean muscle fiber conduction velocity (CV) was highest during eccentric MVC …

AdultMalemedicine.medical_specialtyContraction (grammar)ElbowPhysical ExertionBiophysicsNeuroscience (miscellaneous)Action PotentialsIsometric exerciseElectromyographyConcentricPhysical medicine and rehabilitationmedicineEccentricHumansmultichannel EMG; dynamic contractions; isometric contractionsdynamic contractionsta315Muscle SkeletalMathematicsisometric contractionsmedicine.diagnostic_testElectromyographyMotor controlAnatomyMotor unitmedicine.anatomical_structuremultichannel EMGPhysical EnduranceNeurology (clinical)Muscle ContractionJournal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology
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