The ski exercise machine is a popular part of fitness equipment that mimics the motion of cross-country skiing. It is made up of two separate foot pedals that move forwards and backwards in a sliding motion, allowing users to activate their lower body muscles in the full range of motion. https://www.mediafire.com/file/jcbvixj64wymzhs/Why_a_Ski_Exercise_Machine_Belongs_in_Your_Home_Gym2.pdf/file