Some of you may have heard of this phrase before but I am sure that more of you have not. This phrase comes from the essence that if you move that you will have less age related changes to your joint.
The full idea or breakdown to this saying comes two fold. Motion is good for us and allows us to continue to perform the activities we love to do and the fact that the joints in our body need movement to receive nutrition. Our joints contain both receptors and chemicals that work together to produce and circulate joint fluid to help (1) lubricate and (2) provide nutrition as our joints and ligaments do not contain the appropriate blood vessels to those areas to do so otherwise.
Therefore, just moving around during the day is good enough right?????....depends on who you talk to and your own individual daily activities.
Everyone has their own needs and levels of activity from day to day whether you are a mom at home taking care of her kids, a serious endurance athlete who trains multiple days during the week, or some combination of this. For someone who is not an athlete and just goes for walks for a recreational activity we do not expect them to be able to go to the gym and lift > 100 lbs from the floor...right? Correct, but this is also a wrong way of looking at it.
"What do you mean 'wrong way'?", you may be asking?
Let's break this down. Whether you are an athlete or an active adult we as a human being need some level of resistance to impose stress on our joints ligaments and tendons. This added stress not only will allow us to move (yay! motion is lotion) but it will make our tissues more resistant to strain and sprain as well as break down.
Take for example the woman who is in her mid 40's to early 50's who walks recreationally every day for multiple miles, considering herself an active adult (being an active adult means many things to different people, so don't think of this as an only example). However, when she goes to her MD after receiving a scan for her bone density she finds out she has some osteopenia (mild erosion or decrease in her bone density). She exclaims that she gets out and exercises daily and is surprised that her calcium supplementation has not helped. (Staying on topic we will only focus on her activity)
So, why would she still be noticing a "weakening of her bones" despite her being active....essentia