SitUps! 👶 . Pulling your baby up into a sitting position is another good way to strengthen the muscles in her shoulders, core, arms, and back, says Steve Sanders, Ed.D., author of Encouraging Physical Activity in Infants. . #babysitting #firstsitting #babyactivity #morningbaby #cutebaby #fluffy . @smile4baby🐙 @locca.baby🐙 @children_play 🐙












