Double-Push On Ice
Although it is possible to use the double-push in ice skating, it is by no means certain that it can provide the same advantage that it can in inline skating. This has been attributed Publow, Barry (1999) to the different characteristics of edging on ice. Whereas an inline skate on a center edge continues to grip the road, an ice blade on a center edge will slip if pushed sideways: it must be on an inside or outside edge if it is to "dig into" the ice.
Although some skaters can be seen to be underpushing slightly on ice, the effect is much more subtle. Chad Hedrick, due to his success in connection with the DP, has had his form widely commented on since he moved to ice. The DP has not been widely adopted on ice. Whether this is because it makes little practical difference or for other reasons is at present difficult to say.
The main reason why DP does not work on ice, it is proposed, is that ice skates can move only on a straight line or on a big radius, while DP requires carving movements. Perhaps some technical developments could enable creating an ice speed skate that can carve, but it may have more drag. This problem is similar to cross country skis that do not enable carving techniques.
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