Muscle velocity recovery cycles: Comparison between surface and needle recordings.

Z'Graggen, Werner Josef; Trautmann, Joël Philippe; Boërio, Delphine; Bostock, Hugh (2016). Muscle velocity recovery cycles: Comparison between surface and needle recordings. Muscle & nerve, 53(2), pp. 205-208. John Wiley & Sons 10.1002/mus.24726

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INTRODUCTION Recording of muscle velocity recovery cycles (MVRCs) has been developed as a technique to investigate the pathophysiology of muscle diseases. MVRCs have been measured by direct muscle stimulation and concentric electromyographic needle recording. This study was undertaken to determine whether recordings can be made with surface electrodes. METHODS MVRCs with 1 and 2 conditioning stimuli were recorded simultaneously with concentric needle and surface electrodes from the brachioradialis muscle in 12 healthy volunteers. Muscle relative refractory period, early and late supernormality, and extra-late supernormality were compared between the recording techniques. RESULTS Surface recordings were possible in all subjects. The multifiber action potentials recorded with surface electrodes were smaller than those recorded with needles, but there was no significant difference between any of their MVRC properties. CONCLUSIONS MVRCs can be recorded with surface electrodes in healthy subjects. The use of surface electrodes may facilitate the technique of recording MVRCs. Muscle Nerve 53: 205-208, 2016.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy

UniBE Contributor:

Z'Graggen, Werner Josef; Trautmann, Joël Philippe; Boërio, Delphine and Bostock, Hugh

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0148-639X

Publisher:

John Wiley & Sons

Language:

English

Submitter:

Romina Theiler

Date Deposited:

22 Mar 2016 16:10

Last Modified:

18 Sep 2017 09:40

Publisher DOI:

10.1002/mus.24726

PubMed ID:

26044702

Uncontrolled Keywords:

characterization of muscle disease; excitability measurements; membrane potential; muscle; myopathy; surface EMG

BORIS DOI:

10.7892/boris.77030

URI:

https://boris.unibe.ch/id/eprint/77030

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