08/25/2026
But WHY kids’ CrossFit? Here’s the science (and logic):
1. Build strong bones before they ever need them. Jumping, running, lifting and other weight-bearing activities help give growing bones the stimulus they need. The WHO specifically recommends that kids include activities that strengthen muscle and bone at least 3 days/week.
2. Kids can get stronger. A LOT stronger.
Strength training teaches their bodies how to produce force, control movement and do hard things. A meta-analysis of youth resistance-training studies found a large improvement in muscular strength in children and adolescents.
3. Teach them how to move before they have to move fast. Squat. Jump. Land. Run. Carry. Push. Pull. Learn to control their body. One meta-analysis of 21 trials found an overall injury risk ratio of 0.54 — roughly a 46% relative reduction.
4. We’re not training kids to be smaller. We’re training them to be healthier, stronger humans. The WHO finds regular physical activity in children is associated with better cardiorespiratory fitness, blood pressure, glucose regulation, insulin sensitivity and other cardiometabolic markers, along with healthier body composition.
5. Strong bodies. Better brains.
Exercise isn’t just burning energy — kids are practicing focus, coordination, decision-making and self-control while they’re moving.
It is also recognized that the benefits of physical activity for cognitive outcomes include academic performance.
6. Let them experience being bad at something — and then getting better.
That’s confidence you can’t hand them. The evidence shows that regular physical activity is associated with better mental-health outcomes in young people, including reduced depressive symptoms.
Need we say more?
(Citations are in the captions)
