건강하고 행복하게/建康 運動

♥♥ Bench press

hanngill 2008. 2. 1. 11:37

Bench press

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A soldier (lying down) performs a bench press
A soldier (lying down) performs a bench press

The bench press is a weightlifting exercise which primarily focuses on the development of the pectoralis major muscle as well as other supporting muscles including the the anterior deltoids, serratus anterior, coracobrachialis, and the triceps. Additionally, the bench press one of the three lifts in the sport of powerlifting. The lifter lies on his/her back on a bench while pushing up and lowering down a weighted bar directly above the chest.

[edit] Form

There is a specific form to the bench press which reduces the chance of injury and maximally challenges the muscles of the chest. A barbell bench press' starting position is to be lying on a bench, with the shoulder blades pinched together to avoid recruiting the anterior deltoid during the lift. Feet are kept flat on the ground or end of the bench, with the buttocks always in contact with the bench. The weight is gripped with hands equidistant from the center of the bar, with the elbows bent to 90° and the elbows beneath the wrists. Movement starts by lifting the bar off of the pins, and lowering it until it touches the chest. The weight is then pushed off of the chest, terminating when the arms are straight, at which point the weight can be lowered again. After the desired number of repetitions, the bar is returned to the pins. Because of the heavy weight that can be used and the position of the bar, a 'spotting partner' increases the safety of the movement at heavier weights. [1]

[edit] Variations

Variations are intended to work different subgroups of muscles, or work the same muscles in slightly different ways:

  • Angle - a bench press can be performed on an incline, on a decline, or on a stabilizer ball. The incline-version shifts some of the stress from the pectorals to the anterior deltoids and gives a greater stimulus to the upper pectorals, whereas the decline allows more weight to be lifted while using nearly the same musculature as the traditional bench press.
  • Hand position - Varying width grips can be used to shift stress between pectorals and triceps. A wide grip will focus on the pectorals. A narrow, shoulder width grip will focus more on the triceps.
  • Type of weight - Instead of a bar, the bench press can also be performed with dumbbells which incorporate more use of stabilizer muscles. Dumbbells may be safer to use without a spotting partner, as they may be dropped to the side with less risk of injury.

Variation in angle and exercise may not promote significant performance increases but can assist in building stabilizer muscles and serve as a long term foundation to achieving an increase to an individual's one rep maximum.

Other exercises can be done to superset the bench press, such as dumbbell flys, to hit a different angle and motion for the same muscle groups.

[edit] Repetitions

Different repetition patterns can be used to achieve different goals. For instance:

[edit] Possible injuries

Incorrect form may lead to multiple types of injuries including:

  • torn ligaments/tendons in shoulders.
  • back injuries due to bridging. Bridging is the arching of the lower back which turns the bench press into the decline press. To prevent bridging, compress the stomach muscles to force the lower back down, or bring legs up and flat onto the bench.
  • injuries to the trapezius muscle.
  • elbow/wrist strains.
  • cracked or broken ribs, usually the result of bouncing the bar off of the chest to add momentum to the lift or a loss of strength causing the bar to fall onto the chest.

[edit] See also

[edit] Notes

  1. ^ The Insider's Tell-All Handbook on Weight-Lifting Technique. Stuart McRobert, CS Publishing; 2nd edition, September 1999


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