In short: Motor development follows a universal sequence from bottom to top and from the center to the periphery: first control of the head, then the body, then the legs. Each child has its own terms - the spread of the norm according to the WHO is several months.
Tummy time is the main exercise for strengthening the muscles of the neck and back. It is recommended from the first weeks of life, a total of at least 30 minutes a day by 3-4 months (can be divided into short sessions). Always under the supervision of an adult.
This material is for informational purposes only and does not constitute medical advice and is not a substitute for medical advice. If you are concerned about your child's development, consult your pediatrician or pediatric neurologist.