By Sean Cochran, Golf Fitness Swing faults such as a sway, slide, chicken winging, loss of posture, or an over-the-top-move are extremely detrimental in the execution of proficient golf swing as we all know. In addition, the unfortunate result of these compensation patterns are a loss of speed into the impact position, erratic ball striking, and overall inconsistent play. Swing faults can become a very vicious cycle of frustration when the golfer does not see improvement when time is spent practicing and working on the mechanics of the swing. In such situations what the golfer may not realize is the piece of puzzle which may be causing these compensations and corresponding frustration is the body. Execution of a proficient golf swing requires a physical foundation of mobility, flexibility, stability, strength, and power. If the golfer is lacking in any of the aforementioned physical parameters, the ability to execute an efficient golf swing will most likely be hindered. In such situations where the body is the limiting factor in the execution of the golf swing the development of compensation can easily occur in an attempt to overcome these physical dysfunctions affecting the golf swing. In the most basic of terms execution of a proficient swing requires mobility in the ankles, hips, thoracic spine, shoulder, and wrists. In addition to mobility, segmental stability is needed in the lower body, core, and upper body. In general mobility is developed via flexibility training and segmental stability is created through strength training. A common area of weakness for many golfers leading to the development of swing faults is the core. The core is a reference to anatomical area of the body incorporating all of the muscles from just above the knees to below the chest on the front, sides, and back of the body. Muscles groups such as the glutes, abdominals, obliques, and lower back are included in the core. The muscles of the core must be strong in order to create the required level of segmental stability in this area of the body to execute a proficient golf swin g. The exercise An example of a very good core exercise for the golf swing is the Physio-Ball Jack Knife. This exercise develops strength in the abdominals, obliques, and postural muscles of the lower back. To perform the Physio-Ball Jack Knife exercise squat down and place your stomach on top of the physio-ball. Roll forward on the ball by walking your hands out into a push up position. Continue to roll forward until only the feet remain on top of the ball. Hold the push up position and pull your knees on towards the chest. Continue to pull the knees forward as close as possible to your chest. Hold this position for one second, return to the starting position of the exercise and repeat for 10-15 repetitions. To learn more about Sean Cochran and his golf fitness training exercises and golf fitness programs go to http://www.seancochran.com