How steady can you keep your heart rate? Watch as our team of plucky runners tries to stay within Heart Rate Zone 4 – if they go outside of this, they’re OUT!
There are more and more world record being broken in the marathon, but why? Is it the technology, the training, are we just getting naturally faster? Let's look into it!
Tom has been training harder than ever to get his shiny new PB, but will his Garmin watch help him get it? We’re about to find out as he takes on the Vitality 10k...