Impact of child summertime obesity interventions on body mass index and weight-related behaviors: A systematic review and meta-analysis.

Introduction: Obesity during childhood is a critical public health issue. The summer break from school is a time when children are prone to accelerated weight gain. We aimed to investigate how obesity prevention or treatment programs implemented over the summer affect anthropometric measures or weight-related behaviors.

Estimating circadian phase in elementary school children: leveraging advances in physiologically informed models of circadian entrainment and wearable devices.

Study Objectives: Examine the ability of a physiologically based mathematical model of human circadian rhythms to predict circadian phase, as measured by salivary dim light melatonin onset (DLMO), in children compared to other proxy measurements of circadian phase (bedtime, sleep midpoint, and wake time).

Methods: As part of an ongoing clinical trial, a sample of 29 elementary school children (mean age: 7.4 ± .