Examples
Typical examples of the influence of maximum forces and the resulting elastic deformations on bone growth or bone loss are extended flights of astronauts and cosmonauts as well as patient with paraplegia due to an accident. For example a patient in a wheel chair who is using his arms but due to his paraplegia not his legs will suffer massive muscle and bone loss only in his legs due to the lack of usage of the legs. However the muscles and bones of the arms which are used every day will stay the same or might even be increased depending on the usage.
The same effect can be observed for long flight Astronauts or Cosmonauts. While they still use their arms in an almost normal manner due to the lack of gravity in space there are no maximum forces induced on the bones of the legs.
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