Can kids build muscle like adults? new study tests flywheel vs. weight stack training

This completed study looked at how children (ages 9-13) and adults (ages 18-50) respond to 12 weeks of resistance exercise using either flywheel or traditional weight stack machines. 91 healthy participants were randomly assigned to one of three groups: flywheel training, weight stack training, or a control group. Researchers measured muscle growth and strength changes, and checked for any negative effects on children's growth plates. The goal was to understand if children can safely gain muscle from resistance training and how their response compares to adults.