junior elite sport long-term performance build-up Canada training concept development perspective alpine skiing archery track and field badminton baseball basketball biathlon bowling sport for handicapped boxing canoeing canoe slalom cross-country skiing curling cycling diving equestrian sport fencing land hockey speed skating soccer American football freestyle skiing golf apparatus gymnastics icehockey judo rowing rugby yachting shooting snowboarding sport climbing softball inline-skating parachuting squash swimming synchronized swimming table tennis taekwondo tennis triathlon volleyball water-polo water skiing weightlifting wheelchair sport wrestling junior sports training science sports for the handicapped