 [ Symptoms ] how do i treat a burn [ Disease ] children benefit from resistance training regardless of their age if they have not reached puberty yet it is best to focus on body weight exercises such as pushups sit ups and chin ups focus on proper form and technique rather than using resistance exercises with excessive weights to prevent injury this would be a good time to meet with a strength coach or trainer for guidance on proper form i believe the earlier the better but there really is no age appropriate time frame it is about starting a new routine learning what your body can do learning and adapting to what fits into your lifestyle and slowly working towards your goals