The crunch, knees bent, lying flat with your feet flat on the floor, without lifting the hip, and movement is performed using abdominal muscles to lift your head and shoulders toward the bottom of the body. Hip, crunch because it is held in contact with the surface of which exercise is performed, and abdominal muscles are different. Ab crunch bench bench special exercise to increase the difficulty of contraction, decreasing the normal or vertical, is used. Bench, in order to ensure the effectiveness of the exercise of common places include the pad to keep the extended leg and foot. Sometimes even difficulty.The crunch bench due to increased contractions of the stomach crunching name results from the abs and lift head and shoulders that have been performed using a weight plate or dumbbell or weight . Crunch is generally flat so that the opposite breast at the top of one hand, the back of the head and arms, has been locked in hand to cross over the body. To run a successful contraction, arms, head and arms behind his head and chest in front of shoulders.Either position is effective for use in hand raising crunch bench without assistance. To perform a crunch bench, decline bench begins. Steep decline because more difficult to contract, beginners should be sure to use lower and lower benches. Should be chosen because of the difficulties involved in the use of a vertical bench fitness of these advanced capabilities only. To lie flat on the bench with pads on the front foot, leg locks held behind tight pad is provided, please follow the normal ab crunch with the same procedure.
