DON’T WORRY ABOUT WEIGHTS
You can get all the strength you need from bodyweight exercises. During training runs for Tough Mudders, do ten burpees every 2km to prepare for the stop-start nature of the race.
RECORD YOUR TRAINING
Download social training app Strava to monitor your sessions. It’ll let you share your running and cycling routes online as well as see other people’s so you can see how you measure up by comparison.
Don’t just focus on the obstacles. Go hill running – a 2010 study in MedicineAndScienceIn SportsAndExercise found that runners who varied their pace on different gradients had a more consistent level of oxygen consumption, allowing them to keep going for longer.