Associations of cardiorespiratory fitness, adiposity, and arterial stiffness with cognition in youth.

ABSTRACT: PURPOSE:To investigate the associations of cardiorespiratory fitness, adiposity, and arterial stiffness with cognition in 16- to 19-year-old adolescents. METHODS:Fifty four adolescents (35 girls; 19 boys) participated in the study. Peak oxygen uptake (V?O2peak ) and peak power output (Wmax ) were measured by the maximal ramp test on a cycle ergometer and ventilatory threshold (VT) was determined with ventilation equivalents. Lean mass (LM) and body fat percentage (BF%) were measured using a bioelectrical impedance analysis. Aortic pulse wave velocity (PWVao) and augmentation index (AIx%) were measured by a non-invasive oscillometric device. Working memory, short term memory, visual learning and memory, paired-associate learning, attention, reaction time, and executive function were assessed by CogState tests. RESULTS:V?O2peak /LM (? = 0.36 p = .011) and Wmax /LM (? = 0.30 p = .020) were positively associated with working memory. Wmax /LM was also positively associated with visual learning (? = 0.37, p = .009). V?O2 at VT/LM was positively associated with working memory (? = 0.30 p = .016), visual learning (? = 0.31 p = .026), and associated learning (? = -0.27 p = .040). V?O2 at VT as % of V?O2peak , BF%, PWVao, and AIx% were not associated with cognition. CONCLUSION:Cardiorespiratory fitness was related to better cognitive function, while BF% and arterial stiffness were not associated with cognition in adolescents.

SUBMITTER: Skog H 

PROVIDER: S-EPMC7507089 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature