According to the book "Make Over Your Metabolism" by Robert Reames, you can "manage your weight, shape, and appetite by providing a time-efficient, fat-burning exercise plan, a super simple nutrition plan that will optimize your metabolism, and lifestyle strategies that will help correct red flags that interfere with a healthy metabolism. Rowing machines have different types of resistance. Standard rowing machines use air resistance, other models use a water flywheel which is more closer to real rowing, and still other models use pistons or cylinders. Among of the best stair climbers are the ones with comfortable, adjustable seat and footpads; a bar with easy and comfortable grip; and with low noise. The core principle in using a rowing machine is motivation. In order to maximize its full benefits you have to intensify the speed of your workouts. You have absolute control. Only you can dictate where a single session can go. The arc trainer is one of the newest brands of non-impact cardio equipment that is steadily gaining popularity within the circles of gym-goers. If you truly enjoy a particular cardio exercise machine, you surely would be more motivated to use it. If you hate it, you may notice that you are actually holding back yourself from using it. Thus, you would get no actual benefit from not using the best cardio exercise machine. Second, the exercise machine should not exacerbate any physical discomfort or problem. The important concept when using this machine is to never put too much weight on the handlebars. By doing so, you do not adhere to the standard form of the workout. Moreover, you become susceptible to wrist injuries. You should also maintain proper body alignment and positioning particularly on the knees in order to prevent any sort of straining and injury. This bike is constructed with a solid back inverted T-frame attached firmly to the ground. The front wheel is hanging some inches off the floor so that you can freely move the pedals. This workout machine is designed to provide a low impact workout. It has been tagged as one of the best cardio equipment which can also be effective in strengthening and toning the lower body.