Excessive time spent in car seats, strollers, and other restraints during early childhood may be limiting the natural movement patterns children need for healthy development. A new international study examining movement in young children found that restrained sitting contributes significantly to reduced daily activity levels, raising questions about how modern parenting practices and transportation habits affect physical development during critical growth years.

What Does Restrained Sitting Actually Do to Young Children?

Researchers at LSU's Pennington Biomedical Research Center, working with investigators from 32 countries participating in the SUNRISE International Study, published findings examining how restrained sitting affects early childhood movement patterns. The study looked at how time spent in car seats, high chairs, strollers, and other devices that limit a child's ability to move freely impacts their overall daily activity levels and physical development.

The concern isn't about occasional use of these devices, which are often necessary for safety and practicality. Rather, the research highlights that cumulative time in restraints throughout the day can reduce opportunities for the spontaneous movement, exploration, and play that children need during their most formative years. This matters because early childhood is when children develop fundamental motor skills, coordination, and the physical confidence that supports lifelong activity habits.

How to Support Healthy Movement in Young Children

• Prioritize floor time: Create safe spaces where children can move freely without restraints, crawl, roll, and explore their environment at their own pace during daily routines.
• Limit consecutive restraint periods: Break up time in car seats, strollers, and high chairs with intervals of free movement, even if it's just a few minutes of unstructured play.
• Encourage outdoor exploration: When weather and safety permit, allow children to play outside where they can run, climb, and move in varied ways that develop different muscle groups and coordination skills.
• Reduce screen time paired with sitting: Avoid combining restraint or stationary seating with screen exposure, which compounds the reduction in active movement.
• Vary movement environments: Expose children to different surfaces, inclines, and spaces that challenge their developing balance and coordination in natural ways.

The SUNRISE International Study involved researchers from dozens of countries, making it one of the largest collaborative efforts to examine early childhood movement patterns across diverse populations and settings. This global perspective is important because it suggests the findings apply broadly, not just to children in one region or cultural context.

Why Does This Matter for Long-Term Health?

Movement in early childhood isn't just about physical activity in the moment. The habits and motor skills children develop during these years lay the foundation for lifelong patterns. Children who spend excessive time in restraints may miss critical windows for developing balance, coordination, and confidence in their bodies. This can influence whether they're likely to be active as they grow older, which has implications for childhood obesity, cardiovascular health, and mental wellbeing.

The research also connects to broader public health concerns. Childhood obesity rates have been a growing concern globally, and while many factors contribute, physical activity levels during early childhood are part of the equation. When young children have limited opportunities to move freely, they may develop lower baseline activity levels that persist as they age.

Parents and caregivers often face real constraints: car seats are essential for safety during travel, high chairs are practical during meals, and strollers make it possible to run errands with young children. The takeaway from this research isn't that these tools are bad, but rather that awareness of cumulative restraint time can help families make intentional choices about when and how long children spend in these devices, and how to balance necessary restraint with ample opportunities for free movement throughout the day.