PLAN SUMMARY 80/20 Endurance Premium Strength Plans are the perfect complement to your primary run plan. To choose the right plan for you, consider both the length of your primary run plan and your strength training experience or click here for guidance on matching a strength plan with an 80/20 Run plan, as well as information about the required equipment and workout structure. VIDEO DEMONSTRATIONS Each workout includes videos demonstrating how to complete the exercises correctly. SUPPORT ...