- to four-minute warm-up first and a similar cool-down afterwards.3 Get an unexpected bonus! You don’t just get stronger, but leaner, too. Alternating fast and slow running not only builds running strength and speed, it also burns more fat. What’s more
5K pace with one-minute recoveries. Or, one of my favourites, run four times two minutes at around 5K pace with 90-second recoveries. Do a two- to four-minute warm-up first and a similar cool-down afterwards.3 Get an unexpected bonus! You don’t just
