Muscle Repair. The process of muscle repair depends on the availability of amino acids, and understanding the sequence of events can help clarify why dietary protein is necessary. Whatever the degree of injury to your muscle, trauma to the fibers begins a series of actions to rebuild the damaged tissue.
Typically, babies begin sitting up between 4 and 7 months, Dr. Pitner says. You can help your cutie learn this skill by holding on to her arms when she's on her back and gently pulling her up to a sitting position. She'll enjoy the back-and-forth motion, so add some fun sound effects to make it even more exciting.
When he is about 4 months old, his neck muscles will rapidly grow stronger, helping him as he learns to sit up. Your babyâs physical development progresses from the central part of his body to the peripheral parts -- his arms and legs.ou are probably curious about when your baby will be ready to sit up by himself. He starts getting control over larger muscles before learning to control the smaller muscles of his body.