Cardio machines are a popular choice for people looking to improve their cardiovascular fitness and burn calories. These machines, for example treadmills, ellipticals, and stationary bikes, give a great way to obtain a cardiovascular workout and never have to go outside or join a gym. https://www.mediafire.com/file/jcbvixj64wymzhs/Why_a_Ski_Exercise_Machine_Belongs_in_Your_Home_Gym2.pdf/file