Sports

Alpine skiing is a sport where you travel to a mountain that has snow and you use specialised hard boots, called ski boots, which attach to skis, long planks of wood, carbon or various other materials, by bindings. You slide down the snow covered hill on your skis. If you want to learn how to ski, I would highly recommend taking lessons. There is a whole technique to skiing properly and if you learn correctly, you are much less likely to hurt yourself or other people.

Atrophy

actually that would be atrophy...

squash

figure skating (:

Isometric

specificity

racquetball and squash

an inclined board to decrease the chance of bailing

longboard A+

Single hip rotation