Lifestyle measurements
SE, P.
A short screening questionnaire assessing sleep, physical activity, food consumption/habits, sleep, and screen time is used to differentiate a poor lifestyle from a normal lifestyle. All Lifestyle measures are assessed at T0 (Baseline), T1 (end of intervention), T2 (six months after baseline), T3 (12 months after baseline), except for the shuttle run test (not at T2 (six months after baseline)).I. Lifestyle parameter sleep: sleeping habitsThe Children’s sleep habit questionnaire (CSHQ) is a 33-item parent-report developed for children aged 4–10 [J. Lifestyle parameter sleep: sleep diaryParents are asked to fill in a visual sleep-wake diary to monitor the child’s sleeping habits and subjective sleep experience (regularity, total bedtime, total sleep time (TST), sleep onset latency (SOL), wake after sleep onset (WASO) and sleep efficiency (SE)).K. Lifestyle parameter Sleep: 24 h sleep/wake measurements and physical activityWith actigraphy, a reliable non-invasive manner to monitor objective sleep parameters, the following parameters were collected: TST, SOL, WASO and SE [L. Lifestyle parameter Diet: Food consumptionThe child’s food consumption is measured through an online tool (‘Eetmeter’, Dutch Nutrition Centre) available at both the website of the Dutch Nutrition Centre and as a mobile app (free of charge). All products found in Dutch supermarkets are included in this application, including the standard quantities in which they are eaten. Users can enter all food consumed per main meal (breakfast, lunch, and dinner) and between-main meals (snacks). Parents are asked to track the child's food consumption for two weekdays and one weekend day.M. Lifestyle parameter diet: eating habitsIn addition to the food diary, the child’s eating habits are examined using sections B and C of the Primary Caregivers Questionnaire (PCQ) [N. Lifestyle parameter physical activity: physical fitnessChildren’s physical fitness is measured using the 20-meter shuttle run test [O. Lifestyle parameter physical activity: physical activity questionnaireFurthermore, parents are asked to fill in a questionnaire, including questions about physical activity. Section D of the PCQ [P. Lifestyle parameter screen time: screen activitiesParents are asked to fill in a questionnaire on the screen activities of the child. Section E (sedentary behavior) of the PCQ [