The influence of task variation on manifestation of muscle fatigue is ambiguous - a literature review

T. Luger, T. Bosch, H.E.J. Veeger, M.P. de Looze

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    Task variation has been proposed to reduce shoulder fatigue resulting from repetitive hand-arm tasks. This review analyses the effect of task variation, both 'temporal (i.e. change of work-rest ratio)' and 'activity (i.e. job rotation)' variation, on physiological responses, endurance time (ET) and subjective feelings. Pubmed was searched and complemented with references from selected articles, resulting in 17 articles. Temporal variation had some positive effects on the objective parameters, as blood pressure decreased and ET increased, and on the subjective feelings, as perceived discomfort decreased. The observed findings of activity variation showed both positive and negative effects of increased activity variation, while hardly any effects were found on electromyography manifestations of fatigue. In conclusion, the evidence for positive effects of increasing the level of variation is scarce. The number of studies on variation is limited, while in most studies the findings were not controlled for the amount or intensity of work. Practitioner Summary: Some laboratory-controlled studies showed some positive effects of increasing temporal variation, providing limited support for introducing frequent interruptions in work. Activity variation showed ambiguous effects, meaning there is no evidence for practical implication. In practice, however, other positive effects of activity variation may occur, for example job enrichment and increased motivation. © 2014 © 2014 Taylor & Francis.
    Original languageEnglish
    Pages (from-to)162-174
    JournalErgonomics
    Volume57
    Issue number2
    Early online date19 Feb 2014
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    Muscle Fatigue
    fatigue
    Muscle
    Durability
    Fatigue of materials
    Electromyography
    Blood pressure
    Fatigue
    Emotions
    endurance
    job enrichment
    PubMed
    job rotation
    Motivation
    Arm
    Hand
    literature
    Blood Pressure
    evidence

    Cite this

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    title = "The influence of task variation on manifestation of muscle fatigue is ambiguous - a literature review",
    abstract = "Task variation has been proposed to reduce shoulder fatigue resulting from repetitive hand-arm tasks. This review analyses the effect of task variation, both 'temporal (i.e. change of work-rest ratio)' and 'activity (i.e. job rotation)' variation, on physiological responses, endurance time (ET) and subjective feelings. Pubmed was searched and complemented with references from selected articles, resulting in 17 articles. Temporal variation had some positive effects on the objective parameters, as blood pressure decreased and ET increased, and on the subjective feelings, as perceived discomfort decreased. The observed findings of activity variation showed both positive and negative effects of increased activity variation, while hardly any effects were found on electromyography manifestations of fatigue. In conclusion, the evidence for positive effects of increasing the level of variation is scarce. The number of studies on variation is limited, while in most studies the findings were not controlled for the amount or intensity of work. Practitioner Summary: Some laboratory-controlled studies showed some positive effects of increasing temporal variation, providing limited support for introducing frequent interruptions in work. Activity variation showed ambiguous effects, meaning there is no evidence for practical implication. In practice, however, other positive effects of activity variation may occur, for example job enrichment and increased motivation. {\circledC} 2014 {\circledC} 2014 Taylor & Francis.",
    author = "T. Luger and T. Bosch and H.E.J. Veeger and {de Looze}, M.P.",
    year = "2014",
    doi = "10.1080/00140139.2014.885088",
    language = "English",
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    The influence of task variation on manifestation of muscle fatigue is ambiguous - a literature review. / Luger, T.; Bosch, T.; Veeger, H.E.J.; de Looze, M.P.

    In: Ergonomics, Vol. 57, No. 2, 2014, p. 162-174.

    Research output: Contribution to JournalArticleAcademicpeer-review

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    AU - de Looze, M.P.

    PY - 2014

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