Determine the bolt or latch does not fall in the plate (bottom or side edge?). A good open-chain exercise, your body will take a position where potential risk of utilizing other muscles, like the shoulders, arms etc. be much higher. http://Share.Pkbigdata.com/vickikellerman/5296topone-chain/wiki/2+Great+Strength+Training+Exercises+For+Marathon+Sports+People%21