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Restless legs syndrome in adolescents: relationship with sleep quality, cardiorespiratory fitness and body fat.

Abstract
The aim of the current study was to investigate the relationship between restless legs syndrome (RLS) and cardiorespiratory fitness, body composition and sleep quality in a sample of adolescents.

One hundred fifty seven volunteer adolescents (16.6 ± 0.7 yrs) participated in the study. Sleep quality was assessed by the Pittsburg sleep quality index. Cardiorespiratory fitness was assessed by the 20 m shuttle run test and body composition by bioelectrical impedance analysis.
The prevalence of RLS was 5.1%. The adolescents with RLS were found to exhibit significantly higher body fat levels (=0.019) and poorer sleep quality score (=0.000) compared with their free-RLS counterparts.