If you want to be physically fit, physical fitness training is very necessary to perform the tasks effectively. The regular exercises and other physical fitness training programs should be evaluated to know the exact outcomes. If a person take regular exercise and healthful nutrition, his body automatically repairs itself and works so efficiently for the accomplishment of different tasks of life. It affects different bodily systems, particularly musclo-skeletal system and cardio-vascular-pulmonary system, containing lungs, heart, veins, arteries and capillaries. When our body is undergoing the process of workouts or exercises, our bones and muscles, especially the bones of the spinal column reconstruct and repair by itself. When there is no exercise, the bones of our body tend to develop into thinness or porous condition, known as osteoporosis.