The geometric curvature of the spine of runners during maximal incremental effort test

Journal of Biomechanics
Mário Hebling CamposRené Brenzikofer

Abstract

This study sought to analyse the behaviour of the average spinal posture using a novel investigative procedure in a maximal incremental effort test performed on a treadmill. Spine motion was collected via stereo-photogrammetric analysis in thirteen amateur athletes. At each time percentage of the gait cycle, the reconstructed spine points were projected onto the sagittal and frontal planes of the trunk. On each plane, a polynomial was fitted to the data, and the two-dimensional geometric curvature along the longitudinal axis of the trunk was calculated to quantify the geometric shape of the spine. The average posture presented at the gait cycle defined the spine Neutral Curve. This method enabled the lateral deviations, lordosis, and kyphosis of the spine to be quantified noninvasively and in detail. The similarity between each two volunteers was a maximum of 19% on the sagittal plane and 13% on the frontal (p<0.01). The data collected in this study can be considered preliminary evidence that there are subject-specific characteristics in spinal curvatures during running. Changes induced by increases in speed were not sufficient for the Neutral Curve to lose its individual characteristics, instead behaving like a postural signat...Continue Reading

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Citations

Jul 28, 2016·Journal of Sports Sciences·Mário Hebling CamposMarcelo Costa de Paula
Aug 4, 2020·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Rongguo YanRong'an Jiang
Dec 4, 2019·Journal of Biomechanics·Juliane Cristina LemeFelipe Arruda Moura

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