The use of a bungee in your equipment set up when practicing harness dog sports will protect the joints of the harnessed dog(s) by greatly reducing the impact experienced by their bodies. The pulling dynamics in
kicksled and
dog sledding are radically different from other harness sports. Therefore, the bungee must offer enough elasticity to absorb shock but be rigid enough to not be in constant elongation which creates a loss of energy when your dog or dogs pull.