If we had to choose one word to describe baby feet, it could well be ‘scrumptious’. Baby feet are podgy, warm, wiggly and adorable. But, under the surface, they are a fascinating and complex structure of cartilage, tendons, muscles and ligaments that will develop into a vital structure that will take us on extraordinary journeys.
From those tentative, wobbly first stomps to nervous first steps into primary school, the bones in our feet are developing at a rapid pace and will continue to develop until we are adults.
The bones in a baby’s foot start to grow when they are only eight weeks into fetal development. At this point, our feet are mostly made up of cartilage. This soft tissue is tough but flexible, which helps when a baby is still inside the womb, tucked into a small space. Bone development in the womb starts at our big toe and spreads over the arch towards the heel.
The cartilage in our feet develops during early childhood. We are born with 22 soft cartilage bones. When we start infant school, we have up to 45 formed bones in our feet, and some cartilage remains. Our bones don’t form until we are about ten years old and will continue to fuse, form and mature into 26 bones between 16 and 21 years of age. At any point before that, wearing a shoe that doesn’t fit properly can damage the shape of the cartilage and affect how our bones develop.
We are also born with a fat pad under the bottom of each foot, giving the appearance of a flat foot. The familiar toddler's ‘stomp’ is because the underdeveloped structures in our feet and the body above require toddlers to lift their hips up and down to take a step and propel forward. At this stage, our shoes need to be designed with that in mind—to protect podgy, soft, stompy feet!