It's specifically a warm-up and not a stretch:
Like I said, it's super simple – I saw the video and thought "there's no way that will help." – but a couple sets of about 15 reps per leg (a little slower than the video) made a difference immediately.
Like I said, it's super simple – I saw the video and thought "there's no way that will help." – but a couple sets of about 15 reps per leg (a little slower than the video) made a difference immediately.