Although the Iditarod and official dog mushing season is over, we were able to see how the dogs are trained, what equipment they use with the dogs and witness the strength that these dogs have. The Seavey family has a show in Anchorage that shows you all of these things. It was a rainy day, so the video is not as good as it could be, but you can still get the idea of how strong the dogs are.
Notice at the beginning of both videos how anxious the dogs are to get going and pulling.
The dogs are pulling sleds weighted with concrete blocks and sand bags, totaling several hundred pounds.
The dog team is pulling a pickup from a dead stop.