Thursday 18 June 2015

Ball Rotation (Backspin)



There are many factors that need to be considered when executing a jump shot, and ball rotation is one of them. The most effective technique used to create backspin is the forearm extension from elbow and the flexion or ‘flick’ of the wrist. When performed correctly both these aspects will create backspin.

Figure 5.1








Figure 5.2
Figure 5.1 and 5.2 - When the Steph Curry prepares to execute a jump shot he brings the ball upward keeping the ball close to his body. The ball rests on the base (circle) of the palm on the shooting hand allowing for a swift set up as well as stability and balance (Splash Lab, 2014). Sharp flexion of the wrist leads the ball upward to the fingertips, maximising control and ‘feel’ for the shot and then releasing with a ‘snap’ of the wrist towards the basket. This creates backspin of the ball (Baldwin, 2012). Backspin may not be commonly recognised as a ‘crucial’ aspect of the jump shot, but it is important to consider different aspects that promote greater accuracy of the shot. Keeping the elbow close to the torso will create a smoother release of the basketball and follow through (Furr, 1986). This smooth release will generate backspin on the ball, which then improves the accuracy of the shot (Furr, 1986).


Figure 5.3

Figure 5.3 – When executing a jump shot, backspin is important due to the fact that it helps gain control over the ball. If backspin is not produced the ball is more likely to bounce off the ring in any direction. Research conducted by Alexander (1990) states that “The backspin applied to the ball in a jump shot serves to decrease the horizontal velocity of the ball if it strikes the rim, or causes the ball to deflect downward if it strikes the backboard.” Researchers Yates and Holt (1982) discovered that that quantity of backspin applied to the ball is a major factor statistically related to achievement of getting the ball through the basket (Knudson, 1993). The most influential aspects of achieving a successful jump shot is the wrist action and keeping your forearm vertical, which assists in throwing a straight shot as it creates backspin (Knudson, 1993). In order to achieve optimal ball rotation the follow through must be completed accurately. Incomplete follow through indicates that wrist flexion is slowing rather than climaxing (Knudson, 1993). Ball rotation is essential when executing a jump shot as it helps decrease the velocity of the ball and gain control (Knudson, 1993).

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