Effects of Initial Ball Velocity and Angle of Projection on Accuracy of Basketball Shooting.

Abstract

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A multi‐scale analysis of basketball throw in virtual reality for tracking perceptual‐motor expertise

“…At the scale of ball‐player system, expertise did not influence ball release parameters, which was consistent with literature 20,21 . At the scale of the player system, several variables revealed that experienced players behave differently from novice players.…”

“…At the scale of ball kinematics, an increase in shooting distance increases ball release speed, 14,16–19 and decreases ball release angle 14,17 . The player's expertise seems to have no impact neither on the ball release speed nor on the ball release angle 20,21 . This phenomenon could be explained by the physics of basketball throwing.…”

Biomechanics of the Basketball Jump Shot—Six Key Teaching Points

“…One biomechanical study examined successful and unsuccessful shots from a variety of distances and found that 65 to 85 percent of the errors were a result of initial ball velocity (Toyoshima, Hoshikawa, & Ikegami, 1981). Since velocity is speed in a specific direction, ball speed and release angle combine to determine the velocity Brancazio, 1981Hay, 1985Mortimer, 1951Hudson, 1985aTsarouchas et al, 1988Hudson, 1982Walters et al, 1990White & Elliott, 1989Toyoshima et al, 1981 lated to shot success. Table 1 lists the angles of release theoretically calculated or measured for midrange (10-21 feet) basketball shots.…”

“…Theoretical studies have shown that for an appropriate angle of release, error tolerance in the correct ball speed is about 1 percent (Brancazio, 1981;Mortimer, 1951). One biomechanical study examined successful and unsuccessful shots from a variety of distances and found that 65 to 85 percent of the errors were a result of initial ball velocity (Toyoshima, Hoshikawa, & Ikegami, 1981). Since velocity is speed in a specific direction, ball speed and release angle combine to determine the velocity Brancazio, 1981Hay, 1985Mortimer, 1951Hudson, 1985aTsarouchas et al, 1988Hudson, 1982Walters et al, 1990White & Elliott, 1989Toyoshima et al, 1981 lated to shot success.…”

Kinematic adjustments in the basketball jump shot against an opponent

“…The height the ball reached at release (Hs ball ) was higher when shooting against an opponent than without an opponent even though the height reached by the centre of gravity (CG) from the take-oV position of the player to the release of the ball (SCG ball ) was lower, but neither of these were signi® cantly diVerent. The greater ball release height could be related to the greater release angle as several authors (Yates and Holt 1982, Toyoshima et al 1985, Satern 1988, Miller and Bartlett 1996 have reported a close relation between these two variables, which re¯ects a more vertical orientation of the arm at release. The lower height reached by the CG may be related to the requirements of releasing the ball quickly with the presence of opposition.…”