09/09/2026
Jumping isn’t just about helping young athletes become more explosive. It can actually change the developing skeleton.
In this study, prepubertal boys completed a pretty simple jumping intervention for 7 months. Just 10 minutes, 3x per week.
And they saw greater improvements in bone mineral measures at several sites compared with the control group.
This is important because childhood and adolescence give us a huge opportunity to develop stronger, more resilient bones. Jumping, landing, sprinting and strength training all expose the skeleton to the types of forces that can drive these adaptations.
There was one interesting caveat in this study though.
The boys above the 75th percentile for BMI didn’t see the same changes. One possible explanation is simply that their greater body mass made it harder to perform the jumping exercises as effectively and therefore get the same stimulus. But that’s a potential explanation, rather than something this study actually proved.
For the majority of the children though, the jumping intervention had a positive effect on bone development, and this isn’t the only study to show it.
It’s another reason why I think we need to look beyond just making young athletes faster or stronger right now.
What we expose them to during these years can help build the physical foundations they’ll carry with them into adulthood.