The most important focus in exercise and fat weight control is not the percentage of exercise energy coming from fat but the total energy cost, or how many calories are burned during the activity. The faster you walk, step or run, for example, the more calories you use per minute. However, high-intensity exercise is difficult to sustain if you are just beginning or returning to exercise, so you may not exercise for very long at this level. It is safer, and more practical, to start out at a lower intensity and work your way up gradually. If you're not going to work out hard and often, exercise is a waste of time This kind of thinking keeps a lot of people from maintaining or even starting an exercise program.
Research continues to show any exercise is better than none.
For example, regular walking or gardening for as little as an hour a week has been shown to reduce the risk of heart disease. Yoga is an excellent form of exercise, but some styles are quite rigorous and demanding both physically and mentally. As with any form of exercise, qualified, careful instruction is necessary for a safe, effective workout. In reality, genetics plays an important role in how people respond to exercise. Studies have shown a wide variation in how different exercisers respond to the same training program.