Effectiveness of Parent-based Electronic Health (eHealth) Intervention on Preschoolers' Physical Activity, Dietary Behaviors, and Sleep Problems

Exclusion Criteria

• •1. if they meet the WHO criteria for preschool age children in terms of PA (i.e., 180 minutes of in a variety of PA at any intensity, of which 60 minutes is MVPA), sedentary behaviors (i.e., no more than 1 hour at a time being sedentary such as sit in car, no more than 1 hour per day in screen time such as TV, phone, and computer), DB (such as daily salt intake should be less than 5g), and sleep time (i.e., over 10 hours good quality sleep including nap, with regular sleep and wake time).
• •2. they diagnosed with neurological or physically disable and children who have a parent suffering from a serious physical or psychological disease making the study too demanding for the family will be excluded from the study.
• •3. if they have special dietary requirements or allergies that would necessitate the tailoring intervention or that may be adversely affected by the intervention. Eligible participants will be required to provide informed consent by completing a written consent form after reading the participant information.