In motor development, regression is the appearance of a movement pattern or technique that the individual has previously outgrown or suppressed but that is evident as he or she attempts to learn a new skills. Haywood, page 347 Transition from Crawling to Creeping This transition involves less movement with the trunk on the ground to more forward movement with the trunk lifted above the ground. The boy on the left is crawling and the boy on the right is creeping . Creeping Locomotion on hands and knees with the trunk off the ground. Although first attempt can be characterized by movement of three or more movement patterns.
Contralateral movement is the most advanced movement pattern.
Contralateral movement of the opposite leg and arm is the fastest form of creeping locomotion and therefore, it is used by the winners of major Diaper Derbies . Developmental Changes in Locomotion Depending on which part of locomotion you are investigating, infants, toddlers and children approximate the adult pattern as early as the first year and as late as 7 to 9 years old. Locomotion An infant s first independent steps are characterized by excessive flexion of the hip, knee and ankle. This flexion bias is supported by emg data from the muscles of newly walking infant. Developmental Changes in Locomotion Stride width becomes narrower until the child is about 7 years.