Abstract

MUYOR, José María; ALACID, Fernando  and  LOPEZ-MINARRO, Pedro Ángel. Spinal Posture of Thoracic and Lumbar Spine in Master 40 Cyclists. Int. J. Morphol. [online]. 2011, vol.29, n.3, pp.727-732. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022011000300011.

The aim of this study was to determine the sagittal spinal morphology of thoracic and lumbar spine in relaxed standing and sitting on the bycicle in master 40 cyclists. A total of 50 master 40 male cyclists (mean age: 44.02 ± 2.51 years) were evaluated. The Spinal Mouse system was used to measure the sagittal thoracic and lumbar curve in standing and sitting on the bicycle at three different handlebar-hand positions (high, medium, and low). The values for thoracic and lumbar curvatures in standing were 49.42 ± 9.00 and -22.74 ± 9.38, respectively. A high frecuency of thoracic hyperkyphosis in standing was observed (68%). When sitting on the bicycle the thoracic curve showed lower angles in the three handlebar.hand positions that in standing. The lumbar curve adopted a kyphotic posture. The standing thoracic hyperkyphosis in master 40 cyclists may be related to other factors than the posture adopted on the bicycle.

Keywords : Cycling; Kyphosis; Lordosis; Spine; Posture.

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