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Adjustments to de Leva-anthropometric regression data for the changes in body proportions in elderly humans

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  • Adjustments to de Leva-anthropometric regression data for the changes in body proportions in elderly humans

    Hello all,


    I need to use gender-specific body segment inertial parameters for elderly people.

    Therefore, I'm considering using the values presented in the "Adjustments to de Leva-anthropometric regression data for the changes in body proportions in elderly humans " article.

    However, some of those values, such as the relative location of the CoM of each body segment with respect to the proximal joint, presented in Table 4, are very small (Thigh 7.84 vs 0.428, Shank 11.25 vs 0.419, Foot 5.44 vs 0.5) when compared to others available in the literature (Plagenhoef, 1993).

    I would like to know if someone had ever used the values presented in the article cited above. And if so, if I'm am interpreting the values incorrectly or if these differences are correct.

    Another question that I would like to clarify, is how to define the foot plantar surface, presented in Table 2, so that I can compute the CoM of the foot correctly.

    Thank you in advance for any help provided.

    Kind regards


    Ivo Roupa

  • #2
    Hoang's paper [1] has different values because those are relative to full body height. This is stated in the caption of Table 4. Other sources usually define center of mass position (and radius of gyration) relative to body segment length.

    This may not be ideal when body segment length information is available from motion capture or palpation, and this may help individualize a model. But those measurement are not as reliable as body height, so it's debatable which is best.

    Ton van den Bogert

    [1] Hoang KH, Mombaur K (2015) Adjustments to de Leva-anthropometric regression data for the changes in body proportions in elderly humans. J Biomech 48:3732-3736.


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    • #3
      Thank you for your help.

      After reading your post I finallly understood how the CoM of the segments was computed in Hoang's paper [1].

      Ivo Roupa

      [1] Hoang KH, Mombaur K (2015) Adjustments to de Leva-anthropometric regression data for the changes in body proportions in elderly humans. J Biomech 48:3732-3736.

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