One of the most important enablers of race or workout performance is a proper warm up. Getting your body primed to go fast is the only way you'll actually go fast when it counts. Heartbreak co-founder and Nike Running coach, Dan Fitzgerald, walks you through a complete warm-up here that will get you ready for you next hard workout or the fastest race of your life. First, begin with 5-20 minutes of very easy running (depending on experience & mileage goals) then follow along with this video. (Recommended for distances of 800m - 10K). This video also answers the question: what are strides and how do I do them? (8:12 mark). This is an example of the high quality content to which Heartbreaker team members have access.