May 02, 2013 4:13 PM GMT
When I go to the gym, I see guys doing exercises where they are rocking their body (ex...standing curl) and wondered if that's how the exercise is really done or if they are using too heavy of a weight. Personally, I don't do it myself and try to keep my back upright otherwise I go to a lower weight if I feel like I'm rocking. Just trying to see if I'm possibly missing out on something??