"Spartan Kettlebell Workout"?!?! Seriously? :P
Look, this guy is in great shape and has a lot of videos on YouTube. He literally has over a MILLION views... but he doesn't know jack about how to use Kettlebells! Kettlebells are not just a weird dumbbell and they require a certain amount of training and understanding of their uses to make them effective, not to mention safe to use. Don't be confused by the number of views - this is NOT how to use a kettlebell!