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Potential Energy as an Alternative for Assessing Lower Limb Peak Power in Children: A Bayesian Hierarchical Analysis

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  • Jorge R. Fernandez-Santos

    (GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11519 Cádiz, Spain
    Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, 11009 Cádiz, Spain)

  • Jose V. Gutierrez-Manzanedo

    (Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11519 Cádiz, Spain)

  • Pelayo Arroyo-Garcia

    (Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11519 Cádiz, Spain)

  • Jose Izquierdo-Jurado

    (Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11519 Cádiz, Spain)

  • Jose L. Gonzalez-Montesinos

    (Department of Physical Education, Faculty of Education Sciences, University of Cádiz, 11519 Cádiz, Spain)

Abstract

The aim of this study was to analyze the use of potential energy (PE) as an alternative method to assess peak power of the lower limbs (PP) in children. 815 Spanish children (416 girls; 6–11 years old; Body Mass Index groups (n): underweight = 40, normal weight = 431, overweight = 216, obese = 128) were involved in this study. All participants performed a Countermovement Jump (CMJ) test. PP was calculated using Duncan (PP DUNCAN ), Gomez-Bruton (PP GOMEZ ) and PE CMJ formulas. A model with PE CMJ as the predictor variable showed a higher predictive accuracy with PP DUNCAN and PP GOMEZ than CMJ height (R 2 = 0.99 and 0.97, respectively; ELPD diff = 1037.0 and 646.7, respectively). Moreover, PE CMJ showed a higher linear association with PP DUNCAN and PP GOMEZ across BMI groups than CMJ height ( β PECMJ range from 0.67 to 0.77 predicting PP DUNCAN ; and from 0.90 to 1.13 predicting PP GOMEZ ). Our results provide further support for proposing PE CMJ as an index to measure PP of the lower limbs, taking into account the children’s weight and not only the height of the jump. Therefore, we suggest the use of PE CMJ in physical education classes as a valid method for estimating PP among children when laboratory methods are not feasible.

Suggested Citation

  • Jorge R. Fernandez-Santos & Jose V. Gutierrez-Manzanedo & Pelayo Arroyo-Garcia & Jose Izquierdo-Jurado & Jose L. Gonzalez-Montesinos, 2022. "Potential Energy as an Alternative for Assessing Lower Limb Peak Power in Children: A Bayesian Hierarchical Analysis," IJERPH, MDPI, vol. 19(10), pages 1-9, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:10:p:6300-:d:821377
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    References listed on IDEAS

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    1. Andrew Gelman & Ben Goodrich & Jonah Gabry & Aki Vehtari, 2019. "R-squared for Bayesian Regression Models," The American Statistician, Taylor & Francis Journals, vol. 73(3), pages 307-309, July.
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