Golf stroke mechanics


Golf stroke mechanics is the means by which golfers make decisions and execute them in the sport of golf. For all golfers, it consists of a pre-stroke, in which golfers choose which club they want and their stance, and the actual stroke. The stroke is a complex motion and there is still disagreement on what constitutes a "good" golf swing. In Work and Power Analysis of the Golf Swing, Nesbit and Serrano suggest the golf swing has been studied by scientists and mathematicians who have developed various equations to help explain the complexity of the swing. It is generally agreed that a successful and consistent golf swing requires precise timing and mechanics, from the grip and position of one's fingers, to the position and movement of the feet. At any moment of the swing, whether back-swing, downswing, or upswing, something can go wrong that will throw off the whole body and result in a mishit. The entire swing motion should move on a plane in a fluid manner. The plane can be characterized as horizontal or vertical.

Complex motion

The goal of the golf swing is to direct as much kinetic energy as possible into the club head so when it comes into contact with the ball, all of the energy will transfer to the ball, sending it into flight. Before a swing is taken the golfer first adopts their stance. This is usually a partial crouch because it allows for a more effective range of movement whilst also preloading the muscles. The stance is critical in making sure that the golfer has a low center of gravity in order that they may remain balanced throughout the swing path. The swing starts with the arms moving back in a straight line. When the club head reaches the level of the hip, two things happen: there is a stern wrist cock that acts as a hinge along with the left knee, building up its torque by moving into the same line as the belly button before the start of the upswing. As the swing continues to the top of the backswing, the golfer's left arm should be perfectly straight and his right arm should be hinged at the elbow.
The downswing begins with the hips and the lower body rather than the arms and upper body, with emphasis on the wrist cock. As the golfer's hips shift towards the target and begin rotate, the right elbow will drop straight down, hugging the right side of the golfer's torso. As the right elbow drops, the wrists begin to snap through from the wrist cock in the backswing. A solid extension of the arms and good transfer of body should put the golfer leaning up on his right toe, balanced, with the golf club resting on the back of the golfers neck. Importantly, all of the movements occur with precise timing, while the head remains completely still with eyes focused on the ball throughout the entire swing.

Musculature

A golf stroke uses muscles on core, hamstring, shoulder and wrist. Stronger muscles on wrist can prevent wrists from being twisted at swings, while stronger shoulders increase the turning force. Weak wrists can also deliver the impacts to elbows and even neck and lead to injury of them. Golf is a unilateral exercise that can break body balances, requiring exercises to keep the balance in muscles. A recommended exercise is free weight, an exercise not reliant on machines to stimulate and balance the fine muscles.

Pre-swing

Posture

Timing is the most critical element of the golf swing because it connects all of the different moving parts of the body into one motion. "On the backswing aka the first part of the swing, the order of movement goes like this: hands, arms, shoulders, hips". The downswing is initiated by the shifting and unwinding of the hips. Then the shoulders and arms follow.

Power

The golf swing is capable of producing great force, though it takes practice to be able to effectively utilize it in a productive manner. Most amateur golfers try to get as much power as possible, and try to hit the ball as far as possible, but this is not an appropriate approach for an amateur. The power of the golf swing is not unlocked by muscle or by fastest club head speed, but by the precise timing and mechanics of a motion that has to be put together in harmony. However, more power in the golf swing can be attributed to the development of these lower limb muscles: tibialis anterior, peroneus longus, gastrocnemius medialis, gastrocnemius lateralis, biceps femoris, semitendinosus, gluteus maximus, vastus medialis, rectus femoris and vastus lateralis. With more power, comes the necessity for more control over the body that a golfer must have to control the motions of the swing. "Strength and inertial variations seem more likely than size to account for long and short hitting".

Stroke types

Chip

The chip is a type of shot generally used from short range around the green usually under 40 yards. Although any club may be used, and there are specialist chipping clubs available, a short iron or wedge is most common.
The goal of the chip is to land the ball safely on the green and let it roll out towards the hole.

Pitch

A "pitch shot" is a shot played with a high lofted club, typically a pitching wedge, utility wedge or sand wedge, with lofts ranging from 56° to 62° degrees. These high lofted clubs are designed to hit the ball high from short distances, usually from 40-50 yards and closer.

Putt

The putt is used for putting the ball in the hole or closer to the hole from the green or the fringe of the green. The putter is used for the putt. The golfer adjusts his/her putt to fit the circumstances of the play such as distance to the hole and slope of the green.
The face of the club starts square to the target line. The club goes straight back and straight through along the same path like a pendulum. One strategy is to aim the ball 10% past the hole. Another is to look at the hole for long putts instead of the ball.

Shots

List of shots