Kinesiology 3347A/B Lecture 8: Chapter 8
21 Apr 2016
School
Department
Course
Professor
Document Summary
Performer applies force to an object to project it. Forms: underhand (one- or two-hand, sidearm, overarm (one- or two-hand) Two ways to assess: product measures (outcome): accuracy, distance, ball velocity, process measures (movement pattern): developmental sequences. Figure 8. 1: beginning thrower: no step; just elbow extension, note excessive trunk flexion. Thrower uses preparatory windup (weight shifts and trunk rotates back; arm swings) Thrower uses opposite leg, long step, and differentiated trunk rotation. None, and no forward or backward movements: 2. See textbook table 8. 1 for backswing, upper arm, forearm, and foot copmonents. Throwers may revert to more developmental steps for accuracy throws than for forceful throws. When required to throw a greater distance, differences between throws are minimal. Kicker must have perceptual abilities and eye-foot coordination to make contact (kicking a moving ball is difficult for children: biomechanics of the movement aren"t the only constraints that might limit our ability to perform the kick.
