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- Title
Associations of Cardiorespiratory Fitness and Adiposity With Arterial Stiffness and Arterial Dilatation Capacity in Response to a Bout of Exercise in Children.
- Authors
Agbaje, Andrew O.; Haapala, Eero A.; Lintu, Niina; Viitasalo, Anna; Väistö, Juuso; Khan, Sohaib; Veijalainen, Aapo; Tompuri, Tuomo; Laitinen, Tomi; Lakka, Timo A.
- Abstract
Purpose: To investigate the associations of directly measured peak oxygen uptake ( V ˙ O 2 peak) and body fat percentage (BF%) with arterial stiffness and arterial dilatation capacity in children. Methods: Findings are based on 329 children (177 boys and 152 girls) aged 8–11 years. V ˙ O 2 peak was assessed by a maximal cardiopulmonary exercise test on a cycle ergometer and scaled by lean body mass (LM). BF% and LM were measured by bioelectrical impedance. Stiffness index (measure of arterial stiffness) and change in reflection index (ΔRI, measure of arterial dilatation capacity) were assessed by pulse contour analysis. Data were analyzed by linear regression models. Results: V ˙ O 2 peak / LM was positively associated with ΔRI in boys adjusted for age and BF% (β = 0.169, P =.03). Further adjustments for systolic blood pressure, heart rate, and the study group had no effect on this association, but additional adjustment for clinical puberty attenuated it (β = 0.171, P =.07). BF% was inversely related to ΔRI in boys adjusted for age and V ˙ O 2 peak / LM (β = −0.171, P =.03). V ˙ O 2 peak or BF% was not associated with ΔRI in girls or with stiffness index in either boys or girls. Conclusion: Increasing cardiorespiratory fitness and decreasing adiposity may improve arterial health in childhood, especially among boys.
- Subjects
ADIPOSE tissues; AGE distribution; ARTERIAL diseases; BLOOD pressure; VASODILATION; CARDIOPULMONARY system; EXERCISE physiology; EXERCISE tests; HEART beat; BIOELECTRIC impedance; PUBERTY; REGRESSION analysis; OXYGEN consumption; ERGOMETRY; LEAN body mass; CARDIOPULMONARY fitness; CHILDREN
- Publication
Pediatric Exercise Science, 2019, Vol 31, Issue 2, p238
- ISSN
0899-8493
- Publication type
Academic Journal
- DOI
10.1123/pes.2018-0145