The trifecta of walking, jogging, and running is allowed since the speed of the machine can be adjusted. In this type make sure you warm-up properly before going to higher speeds. Treadmills can come with a lot of features. Generally speaking the more expensive a machine is the more features it has to offer. Do not use the elliptical machine everyday. You have to introduce variety so your muscles and yourself would not be bored. Experiment and try out different pre-programmed workouts. They could include variations in intensity and speed. Change the way you usually workout. You may use various cardio exercise equipment in a week for variety and challenge. Such machines could add fun and excitement to weight training in general. You may opt not to invest in one because you could perform other cardio exercises without the aid of equipment. However, if you really want to increase your motivation and condition your body and mind to do exercises, you should buy and use appropriate cardio exercise equipment now. 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. Everything should be taken in moderation. The statement is applicable in the use of cardio exercise equipment. If you are performing a single motion for numerous times in hours, you would definitely achieve muscle imbalances. If you want a more steadily paced fat-burning workout, you can keep the resistance of your bike fairly low and spin the pedals faster. If you consider yourself already in advanced phase and your stationary bike has preprogrammed features, you may try the hill-climbing or interval option to enhance calorie burn. Make sure that they are free of dust and dirt. Make sure that the floor or mat under the treadmill is cleaned and vacuumed regularly. The lubrication should be checked monthly, while the belt should be inspected for tension and tracking every six months. The same goes for elliptical trainers. Your stationary bike should not be making any squeaking noise.