Running on treadmills and running out in the open countryside can be both be ideal if you’re looking to boost your fitness. There is one slight disadvantage with a treadmill, and when you’re running, the machine is essentially placing your foot in the next position, without a lot of work on your part, and you will certainly burn more miles if you run out in the open than you would on a treadmill.
Then again, with cross-country running here can be the tendency to stop or walk when you’re feeling tired, and on a treadmill you may only need to change the settings down slightly, and it helps you remain at a comfortable pace so you do not end up overworking your body too fast.
The choice is yours when it comes to using a treadmill or opting for cross country running, and you should chose the right option for your needs, and your running style.