Answer:
feed them complementary foods with much higher nutrient density than is required for adult diets
aid the body's calcium absorption and to promote bone's growt]
It would depend on fast you're walking
Isostatic stretching is a flexibility training which is in an advanced form. It should be performed with caution. It is important to avoid isostatic stretches because they can disrupt muscle growth and it fatigue the muscles. It is recommended to do some warm up before doing these stretches.