Recording from a Single Motor Unit During Strong Effort

Steen Andreassen; Annelise Rosenfalck

doi:10.1109/TBME.1978.326283

Recording from a Single Motor Unit During Strong Effort

Steen Andreassen, Annelise Rosenfalck

Research output: Contribution to journal › Journal article › Research › peer-review

446 Downloads (Pure)

Abstract

During strong voluntary effort it is rarely possible to identify the action potentials from single motor units. In large muscles the most selective recordings are obtained with bipolar wire electrodes. To elucidate this experimental finding we have calculated the extracellular field around a single muscle fiber from an intracellular muscle action potential. This model showed that the selectivity of a bipolar electrode is high provided: i) the diameter of the recording surfaces is less than half the diameter of the muscle fibers; ii) the center distance between the recording surfaces is of the same order or smaller than the diameter of the muscle fibers, and when iii) the center-line between the recording surfaces is oriented perpendicular to the direction of the muscle fibers.

Original language	English
Journal	I E E E Transactions on Biomedical Engineering
Volume	25
Issue number	6
Pages (from-to)	501-508
ISSN	0018-9294
DOIs	https://doi.org/10.1109/TBME.1978.326283
Publication status	Published - 1978

Bibliographical note

Copyright 1978 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Access to Document

10.1109/TBME.1978.326283

SteenFinal published version, 3.52 MB

OpenUrl availability

Full text

Cite this

@article{8c2d963c46854fdc90418a6448305af3,

title = "Recording from a Single Motor Unit During Strong Effort",

abstract = "During strong voluntary effort it is rarely possible to identify the action potentials from single motor units. In large muscles the most selective recordings are obtained with bipolar wire electrodes. To elucidate this experimental finding we have calculated the extracellular field around a single muscle fiber from an intracellular muscle action potential. This model showed that the selectivity of a bipolar electrode is high provided: i) the diameter of the recording surfaces is less than half the diameter of the muscle fibers; ii) the center distance between the recording surfaces is of the same order or smaller than the diameter of the muscle fibers, and when iii) the center-line between the recording surfaces is oriented perpendicular to the direction of the muscle fibers.",

author = "Steen Andreassen and Annelise Rosenfalck",

note = "Copyright 1978 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",

year = "1978",

doi = "10.1109/TBME.1978.326283",

language = "English",

volume = "25",

pages = "501--508",

journal = "I E E E Transactions on Biomedical Engineering",

issn = "0018-9294",

publisher = "Institute of Electrical and Electronics Engineers",

number = "6",

}

TY - JOUR

T1 - Recording from a Single Motor Unit During Strong Effort

AU - Andreassen, Steen

AU - Rosenfalck, Annelise

N1 - Copyright 1978 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 1978

Y1 - 1978

N2 - During strong voluntary effort it is rarely possible to identify the action potentials from single motor units. In large muscles the most selective recordings are obtained with bipolar wire electrodes. To elucidate this experimental finding we have calculated the extracellular field around a single muscle fiber from an intracellular muscle action potential. This model showed that the selectivity of a bipolar electrode is high provided: i) the diameter of the recording surfaces is less than half the diameter of the muscle fibers; ii) the center distance between the recording surfaces is of the same order or smaller than the diameter of the muscle fibers, and when iii) the center-line between the recording surfaces is oriented perpendicular to the direction of the muscle fibers.

AB - During strong voluntary effort it is rarely possible to identify the action potentials from single motor units. In large muscles the most selective recordings are obtained with bipolar wire electrodes. To elucidate this experimental finding we have calculated the extracellular field around a single muscle fiber from an intracellular muscle action potential. This model showed that the selectivity of a bipolar electrode is high provided: i) the diameter of the recording surfaces is less than half the diameter of the muscle fibers; ii) the center distance between the recording surfaces is of the same order or smaller than the diameter of the muscle fibers, and when iii) the center-line between the recording surfaces is oriented perpendicular to the direction of the muscle fibers.

U2 - 10.1109/TBME.1978.326283

DO - 10.1109/TBME.1978.326283

M3 - Journal article

C2 - 744596

SN - 0018-9294

VL - 25

SP - 501

EP - 508

JO - I E E E Transactions on Biomedical Engineering

JF - I E E E Transactions on Biomedical Engineering

IS - 6

ER -

Recording from a Single Motor Unit During Strong Effort

Abstract

Bibliographical note

Access to Document

OpenUrl availability

Fingerprint

Cite this