Physical conditioning through interval training with young male adults.

ABSTRACTSwedish military conscripts participated in 3 separate programs of interval training (principal activity - running): Group I (N = 20): 15 sec exercise + 15 sec rest, 3 days/week for 2 months. Group II (N = 9): 3 min exercise + 3 min rest, 3 days/week for 2 months, Group III (N = 8): 1 month