Portfolio theory of optimal isometric force production: Variability predictions and nonequilibrium fluctuation-dissipation theorem

T.D. Frank, K. Patanarapeelert, P.J. Beek

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    We derive a fundamental relationship between the mean and the variability of isometric force. The relationship arises from an optimal collection of active motor units such that the force variability assumes a minimum (optimal isometric force). The relationship is shown to be independent of the explicit motor unit properties and of the dynamical features of isometric force production. A constant coefficient of variation in the asymptotic regime and a nonequilibrium fluctuation-dissipation theorem for optimal isometric force are predicted. © 2008 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)3562-3568
    JournalPhysics Letters A
    Volume372
    DOIs
    Publication statusPublished - 2008

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