Phase angle is associated with cardiorespiratory fitness and body composition in children aged between 9 and 11 years

Publication date: 1 March 2020Source: Physiology & Behavior, Volume 215Author(s): Raquel David Langer, Kell Grandjean da Costa, Henrique Bortolotti, Gleydciane Alexandre Fernandes, Raille Silva de Jesus, Ezequiel Moreira GonçalvesAbstractPhase angle (PhA) is a marker of health and cellular integrity and is used as a tool for predicting nutritional status in children with various health conditions. Even though physical activity and cardiorespiratory fitness have been shown to provide several health benefits, few studies have evaluated the relationship between PhA and health parameters, i.e., cardiorespiratory fitness and body composition. Thus, we aimed to evaluate the association between PhA and cardiorespiratory fitness in children aged between 9 and 11 years. Twenty-three children (52% girls) were tested in a cross-sectional study. The PhA was calculated by bioelectric impedance parameters. Body fat (BF) and fat-free mass (FFM) were measured by dual-energy absorptiometry. Cardiorespiratory fitness (VO2 peak) was performed using the 20-meter shuttle-run test, and allometric scaling were calculated to better control the effect of body weight (VO2 peak BW), BF (VO2 peak BF) and FFM (VO2 peak FFM) on fitness. All analyses were performed separately for each sex group. Pearson's correlation was used to test the association between PhA, cardiorespiratory fitness (relative and absolute), and body composition [BF (kg and%) and FFM]. Linear regression analysis was used to test the d...
Source: Physiology and Behavior - Category: Physiology Source Type: research