"The best and simplest way to get a high level of fitness is doing repeat 100 yard sprints," says Gavin. Unless you are a conditioned athlete, Gavin recommends running them at about 80 percent of your possible intensity. After completing one, you have a 75-second window to jog back and get ready for the next. In this way, you move between your anaerobic and aerobic systems. Do about 8 to 10 repetitions.
Powered By ZergNet
Action-Packed Summer Trips
Race Dune Buggies, Explore Italy, Bike Yellowstone
Plus: Fighting Poachers and Oil Companies in Congo
ON NEWSSTANDS NOW
Nick Offerman's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.