It is a workbook that deals mainly with Rheumatoid Arthritis, but I think it is also important since some of us have many of the same symptoms including the fatigue and joint pains. Body Position Energy conservation is a process of saving energy and better distributing the energy you have over the time you need to use it. If the energy you have is used up at the beginning of the day, you have none left for other things you may need or want to do. Unnecessary muscle tension in certain body positions drains energy.
Good posture is the head and back held straight and arms relaxed at the shoulders.
Poor posture uses unnecessary energy against gravity for hunched shoulders, curved back, and the neck and head slightly bent forward. Good posture, sitting or standing, balances the weight of your head and limbs on the bony framework so that the force of gravity helps keep joint position. The further you move from this position, the more energy is required of your muscles to pull against gravity to maintain your position. Avoid energy-draining positions. When reading or working at a desk, if head is held forward instead of straight up, unnecessary muscle power is used to keep that position.