Finding the best weight-loss exercises The most reliable being active is not necessarily the best exercise for you. For example working out on a indoor machine burns up a lot of calories, therefore it will keep work. But if you are a beginner and not fit then it's difficult to exercise on a machine for 20 moments. So for beginners Rapid Tone may not be the best choice. Jogging or biking would be a much better choice for beginners. And really it is much better to do many different cardio exercise so you do not get bored.