Strength training, not weightlifting

Don't confuse strength training with weightlifting, bodybuilding or powerlifting. Trying to build big muscles can put too much strain on young muscles, tendons and areas of cartilage that haven't yet turned to bone, called growth plates. Also, being more focused on lifting large amounts of weight than on form can make strength training riskier.

For kids, light weights and controlled movements are best. Using good form and being safe are most important.

Children can do many strength training exercises using their own body weight or resistance tubing. Free weights, machine weights and medicine balls are other options. But keep in mind that some equipment designed for adults might be too large for many children.