1. Investigators: Leon Blazer Jerad Thompson

2.  Purpose:  Analyze current methods of teaching pitching and serving using visual aids  Desired Effects Rope placed 14 inches above top tape of net (102 inches from ground String placed so that is hangs 16 inches above the front of home plate.

3.  Problems with Game-like transfer

4.  Possible Solution  Laser device  Benefit (sound vs. visual)  Possible downsides  Marketable?

5.  Methods:  Participants  How Selected?  Set-up for each study  Rope/String, Panasonic Handi-Cam, Canon GL2 digital camcorder, 2 Dell laptops, Kinovea

6.  Serving  8-12 Participants  8 days of filming  Target 200 serves with and without visual aid (rope)  Rope placed 102 inches from ground or approximately 14 inches above top tape of volleyball net  Rope spans two courts, analysis only on court nearest to net cam  Two cameras used:  Sync cameras to record individual serving results  After trial period, employ use of laser device which will give aural (sound) feedback to alert server if target serve height is reached

7.  Pitching

8.  234 total serves (151 with rope, 83 without)

10.  Differences with/without rope  Problems encountered  Why less data points  Video speed problems  Data capabilities of Kinovea  Frame advance  Camera Set-up

11.  Camera Set-up

12.  Differences with/without rope  Problems encountered  Why less data points  Video speed problems  Data capabilities of Kinovea  Frame advance  Camera Set-up  Data Mapping

13.  Data Mapping