2. Muscle growth is a strength instrument in the gym and an excellent weapon for muscle strength training. You can exercise the weak parts according to your own needs.
3. Under the condition of reasonable nutrition supply, muscles will grow rapidly under strong training. However, the average child is not fully developed and is not suitable for muscle exercise.
Exercise is a Chinese vocabulary, pronounced duàn liàn, which is defined as physical activity that uses planned, structured and repeated physical activities to improve the health of one or more body parts.
Make the body strong through exercise, cultivate courage, wit, safeguard collective interests and other virtues.
Baidu encyclopedia-sports