While running across the lifespan can help to slow the rate of decline of cardiovascular capacity and strength, as a runner enters the masters years (40+) they will experience an inevitable and unavoidable progressive decline physiologically, bio-mechanically and also performance wise. A boom in masters runners taking to and continuing on with recreational running has been one of the key drivers in what has been referred to as the second running boom worldwide. The number of finishers at the New…