The problem is that many people simply do not have the conditions for jogging, sprinting etc. Besides, it might be that the closest running trek is simply too far away, which requires a treadmill as an excellent substitute. When buying a treadmill it is important to buy the one with possibility of changing the pace and the incline. Walking or running on the level ground is not the same as running uphill with a very high incline.
Another great exercising form is riding a bicycle. This is a motion similar to running but slightly different. While riding a bike, the torso is bent forward, which might activate back muscles more than while running. The arms are under constant strain, a light one though, because of holding the bike handles. On the other hand, since sitting is involved, no weight is pressuring the ankles and therefore, this might pose less harm for the organism than running. As for legs, the motions performed can be a lot faster than in running, which should shape the legs some more. Also, this exercise can be performed indoors with the help of exercise bike.
Bike Vs. treadmill
When it comes to exercise bike vs. treadmill effects, it is basically the same thing as outside form. Since both of the workout exercises are excellent fat burners and do not demand too much space in home for devices, whichever chosen, it will do nothing but good for the body. But it has to be mentioned that for additional shaping, these two exercises should be combined with some weight lifting. This will slightly increase the muscle mass, as well as overall stamina and endurance. This is because cross training induces many positive effects and thus should be performed as often as possible.