Confused about strength training? Wonder how to sync it with your run training? Look no further! Strength in Stride is our innovative runner’s strength training system that actually flows with your training plan. Designed in phases, you build the right kind of strength at the right time so you get to the starting line healthy and the finish line faster. Easy to use and highly effective, you’ll love knowing exactly what to do and when with Strength in Stride. Access fee: $49.99/year, billed annually. Auto renews every year. Cancel anytime.