1.the diaphragm. hope it helps
<span>Even the most well designed exercise programs will not work everyone. Each person functions and operates differently from one another. So in order to design an exercise program that is perfect for everyone you would have to be willing to change or adapt things as different people join the program. Although most of the things being done will be the same within the program itself it will have to be altered to meet the needs of varying participants.</span>
