Why should heavy-resistance training be avoided in early childhood?

In early childhood, heavy-resistance training should be approached with caution due to the risk of epiphyseal separations. The epiphyseal plates, or growth plates, are regions of developing cartilage tissue located at the ends of long bones. These plates are crucial for bone growth and development during childhood and adolescence. Engaging in heavy-resistance training can place excessive stress on these areas, potentially leading to separation or injury. This risk is particularly significant in children, as their musculoskeletal systems are still developing and may not be adequately prepared to handle the loads associated with heavy weights.

While concerns about overtraining, performance enhancement, and enjoyment are valid in different contexts, the primary physiological consideration in the training of young children revolves around the integrity of their growth plates. Thus, avoiding heavy-resistance training mitigates the risk of serious injury that could impact their overall physical development.