Physical activity and its impact on cardiovascular health in pediatric kidney transplant recipients
Pediatric Nephrology(2024)
Abstract
Background Cardiovascular (CV) morbidity after kidney transplantation (KTx) in childhood is of increasing importance. In light of a high prevalence of CV risk factors, protective measures such as physical activity (PA) come into focus. Our aim was to comprehensively assess PA in pediatric KTx recipients and evaluate its impact on CV health. Methods Forty-eight patients were assessed for frequency, duration, intensity, and setting of PA using the “Motorik–Modul” PA questionnaire. Walking-based activity was measured by accelerometer in a subgroup ( n = 23). CV risk factors and subclinical CV organ damage were determined. The impact of PA on CV parameters was analyzed using linear regression models. Results Fifty-two percent of pediatric KTx recipients did not reach WHO recommended PA level; 54% did not engage in PA with vigorous intensity (VPA). Twenty-nine percent indicated an extremely inactive lifestyle (< 120 min/week of moderate to vigorous intensity PA, MVPA). Compared to the healthy German KiGGS cohort, KTx recipients specifically lacked engagement in sport activities (KTx: 129 min/week; 95%CI, 97–162 vs. KiGGS, 242 min/week; 95%CI, 230–253). VPA was associated with lower systolic blood pressure ( p = 0.024) and resting heart rate ( p = 0.005), MVPA with fewer components of the post-transplant metabolic syndrome ( p = 0.037), and better left ventricular diastolic function ( p = 0.006). Conclusions A considerable lack of PA, especially VPA, exists in young KTx recipients. PA was positively associated with important parameters of CV health. While long-term CV protection through PA seems promising in pediatric KTx recipients, specific educational approaches are most likely needed to increase patients’ engagement in sport activities. Graphical abstract A higher resolution version of the Graphical abstract is available as Supplementary information
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Key words
Children,Kidney transplantation,Physical activity,Blood pressure,Metabolic syndrome,Diastolic function
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