Professional athletes already know that intervals work for them. If you want to ...

		jrockway on April 28, 2016 \| parent \| context \| favorite \| on: Benefits of 1 Minute of All-Out Effort during Exer... Professional athletes already know that intervals work for them. If you want to win the Tour de France you probably need to bike for more than 10 minutes a day, but longer intervals work at increasing your power.