Ah January–the time for resolutions. After nearly 35 years teaching in fitness facilities, I know that many, many people will make healthy eating habits a priority, especially after the holiday feasting. Which is a good thing! Better nutrition is a vital part of any integrative approach to health. Without going into detail, our physical body is made up of the stuff of food and to be a little more detail-ish, minerals in particular, when we think of bones. For bones to form it takes more than just ingestion and digestion. There is a healthy competition going on inside us for those minerals that goes bone deep.
How nutrients absorb into your tissues has to do with what happens at the cellular (micro) level. First, think from a macro level: when you move a lot, you get more hungry, right? Well, the same thing happens in your cells. When they move, they absorb more nutrients. But it is important to consider how these cells move, since they are part of a specialized team of cells that form a tissue. Bone tissues have different movement needs from muscle tissues. The study of biomechanics (emphasis on the BIO) researches specifically what happens at the cellular level to create healthy nourished tissues. FYI: mechanotransduction is what happens.
When I was in biology class in middle school, we drew blobs with little floaty parts and called them cells. The floaty parts were organelles and they were sort of cool and we needed to know their names, but that was about it. As it turns out, the human body has patterns that repeat from the micro to the macro levels. Cells have a very tiny bone-like structure that “feels” movement and transmits signals like “I’ve been moving a lot and my cell is hungry” to the organelles. Which then absorb more of the nutrient soup that is extracellular fluid. No movement, no signal, no soup.
So we not only need to move to need to eat, we need to move specifically in a way that signals all of our tissues to get into the soup line. Which, since there is a variety of tissues in our bodies, we need to move in a variety of ways. I’m just going to talk about bones for now, for the sake of staying sort of non-detail-ish.
Even our bones have a variety of needs that are based their shape and function. Long bones, such as your femur (thigh bone) need a certain amount of compressive and vibrational impact to get hungry. Movements like walking provide most of those needs, but the walks should encompass a variety of terrains and inclines rather than be flat and level, like most walking paths. The changing vibrational directions of non-flat walking creates a better diet for femurs. Running is fine, but it should be done on varied surfaces as well. Running on flat, level concrete may be too much of a good thing; steadily feeding the same area in a bone creates excessive growth such as spurs or arthritis.
The tiny sesamoid (“sesame seed”) bones in our body in places like hands, feet, and neck prefer pulling or tensile movements rather than impact. These bones are embedded in joints that have a lot of tendons and they help to create sliding movements. Your knee cap is the largest sesamoid bone. Compressing your kneecap doesn’t make it stronger and usually doesn’t feel good at all, which is a signal that it is getting the wrong kind of diet. Rather, the knee cap helps the knee to slide well and the pull from that sliding is what stimulates its appetite for some good calcium rich soup.
The human pelvis is maybe one of my favorite bones. Well, it is actually several bones that change over a lifetime, especially for women. Within the pelvis are the pubic symphysis, the sacroiliac (SI) joints, and the hip joints. Any of these can become mineral poor if not given a healthy movement diet. Hips are one of the main sites for osteoporosis. And no matter how much calcium you eat in your macro diet, the hip joints need specific movements to absorb it. There are several shapes of bones that come into the structure of the hip joint, so movements need to be varied including squatting, climbing, crawling, and walking. Standing posture is also important since the bowl of the pelvis is what holds the belly of our body and that creates a specific compressive load as well. The pubic symphysis needs tension that moves diagonally across from thighs to abdomen for the joint to be stable. And the SI joint needs a bit of both tension and compression in balance. Bottom line (hee hee) is that you need to move your bottom in a variety of ways. all. the. time.
So, when you make your resolution for the New Year—be sure to think bone deep. Move in a way that serves all of your needs, not just the need to reduce your calorie load. Your tissues will be inclined to help you with that if you create a hunger within their cells!