Added: 4 months ago
From: TwiceTheSpeed1
Views: 12,137
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  • you make it look so easy

  • Ive been doing the last one for about two weeks, and i already feel a change in my speeed and vertical! Thanks!

  • Amazing.. Keep it up Jack, look forward to your other videos.. Also, what are shin splints?

  • @Sprintzish google it?

    

  • @Sprintzish pain in your shins, when you run...or finished running

  • can you do some basketball workouts too?

  • is that ur Ankle that keeps cracking when u jump?

  • lol "this box is a little short"

  • i''ll try^^

  • thanx for usefull information!

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