The most strenuous sport ever
The Most Strenuous Sport Ever Created Water polo often tops lists of the most physically demanding sports. Bleacher Report declared water polo to be the world's toughest sport, based on six parameters of strength, endurance, speed, agility, skill and physicality. US men's water polo head physician Dr. Naresh Rao explains that the sport is so strenuous because of its dual aerobic capacity. Cross-country skiing Cross-country ski courses are a mix of flat and steep terrain. About one-third of the time on the course is spent skiing uphill, and skiers' success is highly dependent on how well they handle the uphill sections. The terrain can have inclines of 20 percent to -20 percent, and a wide variety of speeds requires frequent changes in technique between nine sub-techniques. There are two types of aerobic activity in cross-country skiing: anaerobic activity and aerobic activity. Anaerobic activity requires the body to produce energy by burning fat. Skiers need to balance ...