Ever since I first saw this video almost two years ago, I have incorporated these exercises in with my regular weightlifting routine. As a result, I gained a major boost in energy, long duration strength, and a much more interesting workout. Since this video, I began and continue research in the mechanics of rugby training, and how those beastly rugby players become so powerful. This is great for anyone who wants to shake things up a bit in the gym, and gain more explosive strength and size. Incredible video, and I hope you enjoy it as much as I have!