Any exercise is better than no ex Flash Keto ercise. However, like diet plans, not all exercise is created equal, and many people often choose the wrong form of exercise to maximize their efforts to lose weight. For example, they will do aerobics exclusively and ignore resistance training. Resistance training is an essential component of fat loss, as it builds muscle essential to your metabolism, increases 24 hour energy expenditure, and has health benefits beyond aerobics.