Strengthening: Negotiating the water requires your child to use all of his/her muscles. Your child’s core, arms and legs, will become stronger while playing against the resistance naturally provided by the water. Coordination: Swimming requires a lot of coordination! While each stroke is different, they all require simultaneous movement from your child’s arms and legs in many different combinations: symmetrical, asymmetrical, in-phase, out-of-phase, contralateral and ipsilate