For children and teenagers, it is generally safe to begin resistance training as long as they are physically mature enough to handle the exercise demands. This usually occurs around 13 or 14 for boys and 15 or 16 for girls. However, it is essential to consult with a doctor or other healthcare professional to determine if it is safe for a particular individual to start resistance training.
For adults, there is no age limit for starting resistance training. However, it is recommended that adults engage in resistance training at least twice weekly to maintain muscle mass and strength. As we age, our muscles naturally begin to decline, so it is essential to incorporate activities that help to keep and build muscle mass to maintain functional independence and overall health.
However, starting slowly and gradually increasing the intensity and volume of the resistance training is essential as your body becomes accustomed to the exercise demands. Using proper technique and form is also necessary to avoid injury and get the most benefit from the exercises. It may be helpful to work with a trained professional, such as a personal trainer or physical therapist, to learn proper techniques and develop a safe and effective resistance training program.
Age is just a number. It's totally irrelevant unless, of course, you happen to be a bottle of wine. - Joan Rivers
In summary, resistance training is a safe and effective exercise that people of all ages can perform. However, it is essential to consult with a healthcare professional and gradually increase the intensity and volume as your body becomes accustomed to the exercise demands. Using proper technique and form is also essential to avoid injury and get the most benefit from the exercises.