The key big difference, Shaul stressed, would be the duration with the event. "An ultramarathon can very last more than 12 several hours, but a skimo race just isn't that long," he claims, the athletes Really don't want just as much quantity of their coaching." Another significant difference between the two is skimo's use on the higher overall body. As Shaul clarifies, "Skinning uphill is a little bit additional metabolic as you make use of your poles for that climb." He has athletes…