Want stronger, toned calves? Introducing the Muscle Runner

Those toned calves might come at the expense of your Achilles, though

Does running on soft surfaces decrease your risk for injuries?

Spoiler alert: the surface you run on has very little impact on your injury risk

Higher mileage could lower likelihood of nagging Achilles pain

Study finds 32 per cent of runners with Achilles issues have them for over a year