Several years ago, I had the opportunity to visit my nephew who was doing an internship through UNCW with the Ft. Fisher Aquarium outside of Wilmington, NC.
We got to view many of the excavated remains found around the historic area: a location home to a variety of the peoples who had lived there. Of interest to me was the thigh bone of what was believed to be the remains of one of the native American tribes indigenous to the area. It was a large bone, slightly nicked but overall, a solid, well formed remainder of human strength.
It was explained to us that this bone was above average larger and more dense, indicative of a human who had strengthened himself by the carrying of heavy loads.
Flashback back to today.....On a weekly basis, we have people coming into Chizel because they've just been diagnosed with Osteopenia or Osteoperorsis and they've been told that they need to do "weight bearing" exercises.
Granted, this term "weight bearing" is going to differ person to person according to what a person is used to, but the longer we work with people, the more evident it becomes that the human body is decisively efficient. It gets adept at doing any activity done often with the least amount of energy.....thus in order to see change, we always need to create a stimulus.
Issues with loss of bone mass are really an indicator that we've not done anything to challenge our bodies ( or bones) aside the normal day to day activities. Taking out the garbage, picking up the kids out the car seat, carrying in the groceries will never cut it.
It has to be more.... enough to cause your body to increase bone mass.
Loosing inches as we grow older, feeling the results of weakened backs as the vertebrae discs compress, falling and fracturing a hip from a simple misstep, are potential unnecessary outcomes of a choice to not persue a weight resistant regimen.