Is This Interval System BETTER than what 99 of Runners are using

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=WN5jcAxpJTc

Free training for runners over 50: https://coachparry.com/uy6p-Free-Trai... • In this video, sports scientists Lindsey Parry Devlin Eyden delve into Coach Parry's JIT Interval system to see if it's better than what the majority of runners are using. • We've added a few more examples of our JIT Intervals for you to check out here: https://coachparry.com/jit-intervals/

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