Is the leg when pull-up wants a turn to rise still unbend? What is distinguished?

The canal is the pull-up of forehand or backhand, crural position can affect your athletic performance, in fact, the extent of the influence can let you frighten jump, because of you all the time since the means that uses most person is being done, next, this also won't change your training weight, also won't change gravity, do a few days without giving thought to so or do a few groups or do a few times, the weight that you train won't be changed, this did not concern with crural position. However, this wants the effect that the muscle place of training causes to you, will substantially the positional place effect that gets a foot. We know back flesh begins from the back of the upper arm, outspread all the time here. We know, can use crural position, will change pelvic posture, and back flesh is down all the way outspread in the pelvis. Accordingly we can improve sarcous extend condition with crural position. Everybody's common pose lets double foot across namely, let knee bend next, keep the foot in the body rear, this movement is very popular, this pose is very good, if you use the doorcase in the home to come,drill pull-up, you won't have too much perpendicular space to do pull-up, you need your double foot across, at the same time knee bends, will shorten the length of the body. However the foot that actually you need not allow you is maintained in the body rear, you can let your foot replace such movement in body ahead, and this will substantially the training condition that improves back flesh, return the hair force that can improve you at the same time. Can let muscle be when motion stronger systole.