McMaster University

Child Health & Exercise
Medicine Program

Scope of Search

The SKIP Study: School-age Kids' health from early Investment in Physical activity

Since 2010, our research team has conducted the Health Outcomes and Physical activity in Preschoolers (HOPP) study. This study followed the physical activity and health of approximately 400 boys and girls ages 3, 4, and 5 over three years. We now have the opportunity with the SKIP study to continue following these children as they grow into school-aged kids.

The early years are known as a critical period for the development of active living behaviours. But we do not know if the benefits of physical activity can be "banked" over time or if health status is influenced more by recent physical activity levels.

Our overall goal is to try to understand the influence physical activity in the early years has on health during the school years.

This study is funded by the Canadian Institutes of Health Research (CIHR).


To do this, we are going to answer the following questions:

  • Are frequency, intensity, and duration of physical activity important for health in children?
  • Are active preschoolers likely to stay active later in childhood?
  • Is physical activity during the early years associated with health outcomes later in childhood?
  • Does meeting physical activity recommendations during the early years influence health later in childhood?
  • What other factors are relevant to supporting a physically active lifestyle?


What does the study involve?

Children in the SKIP Study will complete annual assessments of health measures, fitness, nutrition and physical activity, similar to the HOPP study. Participation involves one visit to McMaster Children's Hospital once every year. During the visit, we will assess the following:

  • Fitness: bike and treadmill tests
  • Motor skills: Balance, movement, and object control skills
  • Body composition: Muscle and fat
  • Heart health
  • Physical activity
  • Nutrition


Who is eligible to participate?

We will be asking boys and girls between 6-11 years old who took part in the HOPP study to participate in the SKIP study.


Who can I contact for more information?

If you have questions or want to learn more about this study, please contact Natascja by email at, or call 905-521-2100 ext. 77566