The Pull-UP (also known as a chin or chinning) depending on forward or rearward facing hands) is a strength training exercise. People frequently do this exercise with the intention of strengthening muscles such as the latissimus dorsi and biceps, which extend the shoulder and flex the elbow, respectively.
The movement begins with the arms extended above the head, gripping a hold. It may be fixed, such as a chin-up bar or moving, such as gymnastic rings or rotating handles. The body is pulled up, with the bar approaches or touches the upper chest. A chin-up is considered complete based on a variety of criteria in relation to where the chin should be in respect to the bar, or in respect to the hand grips. The body is then lowered until the arms are straight, and the exercise is generally repeated.
Not everybody can immediately do full body weight pull-ups. There are also times when a person wants to do more reps than native body-weight will allow. Applying the principle of Negatives and Drop Sets to pull-ups allows the user to push further for quicker gains.
Another Bodyforce first, Interactive Pull-Ups allows two separate users to assist or resist each other depending on their desired goals and the X9 configuration. Further “adjustments” can be made by entering the X9’s weight stack system favoring or opposing either user. Another variation, one person can be doing dips while the other does pull-ups and vice versa. This is a useful and fun way for two people to push each other while getting in a great workout. Personal Trainers will also find this function useful in fine tuning their clients output while also getting exercise simultaneously.