is essential for off-road running. "Trail shoes give you good grip and good grip gives you confidence on what can be an otherwise uncertain surface," says Chris Robison, a former GB cross-country international. "There is a wide range of quality shoes
interval-based," says Dixon. "Try a session where you do 10 seconds hard, 10 seconds easy, 20 seconds hard, 20 seconds easy, all the way up to 60 seconds and back down again."This session can be done on a gym bike, a turbo bike or out on the road. Another
