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The Impact of Overweight on Flexibility and Functional Capacity

Augusto dos Santos Bittencourt, Pedro Arthur Silva Vieira, Maykeane Cristina Catarino Ferreira, Lucas Lage Primo, Thamyres Nara Deiró, Patrick Roberto Avelino, Kênia Kiefer Parreiras de Menezes, Susan Martins Lage and Henrique Silveira Costa

Obesity is a health problem worldwide, with a significant impact on the mortality of individuals. However, considering the importance of preventive management, few studies have addressed the predictors of functional impairment in overweight subjects. The present study aimed to verify the differences in functional variables in overweight volunteers compared to eutrophic subjects, to determine the independent predictors of functional capacity in overweight subjects and to provide a model that can predict exercise capacity in this population. Seventy-four physically active participants (both sexes, aged 18 to 60 years) were evaluated and stratified into two groups: eutrophic (n=45, 33 ± 11 years, 76% females) and overweight (n=29, 37 ± 12 years, 41% females), according to body mass index (BMI). All volunteers were submitted to clinical, anthropometric, flexibility, muscle strength and endurance evaluation and maximal exercise testing. Differences between groups were verified by Independent T test or Mann-Whitney. Uni and multivariate linear regressions were performed to verify the independent predictors of functional capacity in the overweight group. The overweight individuals were predominantly male (58.6%), with iliopsoas (p=0.009), pectoral (p<0.001) and piriformis (p=0.003) shortening, and with lower values of peak oxygen uptake (VO_2peak) (p=0.012). In the final multivariate model, BMI and body fat percentage were the only independent predictors of functional capacity in overweight volunteers and VO_2peak can be predicted by the model VO_2peak=85.161 – (0.747 × BMI) – (0.925 × body fat percentage). Overweight individuals already show musculoskeletal and functional changes when compared to eutrophic ones. Preventive strategies should be adopted in this population, aiming to prevent musculoskeletal and functional dysfunctions that may compromise the functional capacity of these individuals.