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Besides the fact that they were built to do so, there are a great many reasons why infants need to move. The truth is, even though their movement capabilities are extremely limited when compared with even those of a toddler, movement experiences may be more important for infants than for children of any other age group. And it’s not all about motor development either.
Thanks to new insights in brain research, we now know that early movement experiences are considered essential to the neural stimulation (the “use-itor- lose-it” principle involved in the keeping or pruning of brain cells) needed for healthy brain development.
Not long ago, neuroscientists believed that the structure of a human brain was genetically determined at birth. They now realize that although the main “circuits” are “prewired” (for such functions as breathing and the heartbeat), the experiences that fill each child’s days are what actually determine the brain’s ultimate design and the nature and extent of that child’s adult capabilities.
An infant’s brain, it turns out, is chock-full of brain cells (neurons) at birth. (In fact, a one-pound fetus already has 100 billion of them!) Over time, each of these brain cells can form as many as 15,000 connections (synapses) with other brain cells. And it is during the first three years of life that most of these connections are made. Synapses not used often enough are eliminated. On the other hand, those synapses that have been activated by repeated early experiences tend to become permanent. And it appears that physical activity and play during early childhood have a vital role in the sensory and physiological stimulation that results in more synapses.
Neurophysiologist Carla Hannaford, in her excellent book, Smart Moves: Why Learning Is Not All in Your Head, states: “Physical movement, from earliest infancy and throughout our lives, plays an important role in the creation of nerve cell networks which are actually the essence of learning.”
She then goes on to relate how movement, because it activates the neural wiring throughout the body, makes the entire body—not just the brain—the instrument of learning.
Gross and fine motor skills are learned through repetition as well—both by virtue of being practiced and because repetition lays down patterns in the brain. Although it hasn’t been clearly determined that such early movements as kicking, waving the arms, and rocking on hands and knees are “practice” for later, more advanced motor skills, it’s believed that they are indeed part of a process of neurological maturation needed for the control of motor skills. In other words, these spontaneous actions prepare the child—physically and neurologically—to later perform more complex, voluntary actions.
Then, once the child is performing voluntary actions (for example, rolling over, creeping, and walking), the circle completes itself, as these skills provide both glucose (the brain’s primary source of energy) and blood flow (“food”) to the brain, in all likelihood increasing neuronal connections.
According to Rebecca Anne Bailey and Elsie Carter Burton, authors of The Dynamic Self: Activities to Enhance Infant Development, whenever babies move any part of their bodies, there exists the potential for two different kinds of learning to occur: learning to move and moving to learn.
Still, recent evidence indicates that infants are spending upward of 60 waking hours a week in things— high chairs, carriers, car seats, and the like! The reasons for this trend are varied. Part of the problem is that more and more infants are being placed in childcare centers, where there may not be enough space to let babies roam the floor. Or, given the number of infants enrolled, there may be little opportunity for caregivers to spend one-on-one time with each baby. This means, in the morning, an infant is typically fed, dressed, and then carried to the automobile, where she’s placed in a car seat. She’s then carried into the childcare center, where she may spend much of her time in a crib or playpen. At the end of the day, she’s picked up, placed again into the car seat, and carried back into the house, where she’s fed, bathed, and put to bed.