Probably Snowboarding uses most energy because its hard and you have to train a lot.
It is speed skating.The skater has to go as fast as they can .It is unknown which burns the most calories.
what i think of the sport that uses the most energy in an hour is wrestling and track and field because you use youre whole body with that sport
Swimming
an Olympic sport=the skeleton
cross country skiing
The sport that uses the most muscles is ballet!
Hockey
weight lifting sport uses the trapezius most.
Ice hockey
Ski Jumping
Hockey
Hockey, 5000m speed skating and long crosscountry skiing