ok i was watching bernard hopkin's Training Video And He Puts this "helmet " looking thing on with a big weight attached to it and moves his hes up and down whats this for??
Also If I wear a Weighted Vest About 60 lbs or something during Workouts Would it increase my stamina alot
~ http://youtube.com/watch?v=GjV3O2CLisg ~The Weight thing im talking about is at Around 2:50 minutes~
-Thanks everyone-.
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