1.Risk of inujury :- Incorrectly and excessive weight training introduce injury and pain in children.
2. Less flexibility :- Weight training reduces the level of flexibility because weight training is mostly practised for development of strength. So flexibility is reduced due to it.
3. Maturity :- Children should not begin weight training or any other workouts untill they are physically and emotionally mature enough to handle it because it can lead to serious, bony injury or deformities in the children.
4. Growth of Children : Excessive weight training may cause negative effects on the normal growth of children.
5. Needs a supporter :- children shall not perform any weight training or workout in case of absence of supporter.