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    Impacto da magnitude da curvatura espinhal na capacidade de exercício de indivíduos com escoliose idiopática do adolescente
    (Universidade Federal de São Paulo (UNIFESP), 2016-03-22) Almeida, Bruna Marques de [UNIFESP]; Vidotto, Milena Carlos [UNIFESP]; http://lattes.cnpq.br/0334734747375995; http://lattes.cnpq.br/1089256890866996; Universidade Federal de São Paulo (UNIFESP)
    Adolescent idiopathic scoliosis (AIS) is the most common cause of spinal deviations. The different degrees of scoliosis curvature can influence the respiratory mechanics during exercise and contribute to decreased exercise capacity. Objective: To evaluate the distance traveled (ISWTD) and physiological responses during the Incremental Shuttle Walk Test (ISWT) in patients with AIS. In addition to assessing the magnitude of spinal curvature, respiratory muscle strength, pulmonary function and its correlation with the physiological responses during ISWT. Methods: This was a cross-sectional study, which were included 46 adolescents with EIA. These were divided into two groups, adolescents with spinal angle, measured by the Cobb method, more than 45 ° (EIA> 45 °) lower than 45 ° (EIA <45 °). The control group consisted of 20 healthy adolescents. The adolescents were submitted to ISWT using a gas analyzer, which quantified the physiological responses such as oxygen consumption (VO2), VO2 corrected for body mass (VO2kg), the efficiency of oxygen capitation (OUES), tidal volume (VT), minute volume (VE) and ventilatory pattern (?VC / ?lnVE). Pulmonary function test was performed and obtained the value of forced vital capacity (FVC) and forced expiratory volume in 1° second (FEV1). Results: Patients with AIS > 45 ° showed lower values when compared to the AIS < 45 ° and control group for the following variables: ISWTD (p <0.001), VO2 / kg (p <0.001), VT (p = 0.001), VE (p = 0.001), OUES intercept (p = 0.043), VFC (p = 0.001) and FEV1 (p = 0.005). In patients with EIA were found moderate correlations between VFC (r = - 0.506), VT (r = - 0.476) with the angle of thoracic main Cobb. The ISWTD correlated with VE (r = 0.609) and VO2 / kg (r = 0, 541); as well as the ?VC / lnVE correlated with VO2 (r = 0.411) and OUES (r = 0.562). Conclusion: The ISWT was a test able to identify lower exercise capacity in patients with EIA. Given that, adolescents with angulation> 45 ° run lower distances and have worse VO2 and OUES values. Moreover, the worse the spinal curvature, the worse exercise capacity and lung function of adolescents with EIA, therefore, we can conclude that the magnitude of spinal curvature exerts influence on the variables studied.