INTRODUCTION

In our analysis, we attempted to answer the question, "how does stick length affect lacrosse throwing motion?" We believe that this question is important in terms of maximizing performance and minimizing risk of injury. We believe a short stick will help to maximize performance in terms of a quicker ball release. We also believe that a shorter stick will minimize risk of injury, because the overall motion seems smoother. Field position dictates stick length; offensive players use short sticks, and defensive players use long sticks. However, each player may choose to shorten or lengthen their stick within about a three inch range. Further, we feel that by analyzing both the similarities and differences between short-stick and long-stick throws, we may be able to apply our findings to other areas, including similar motions such as applying paint with a roller, using large tools such as a sledgehammer or axe, rehabilitation of the upper extremity, and work-site ergonomics (where reaching, grasping, and lifting is required, for example).

The purpose of our analysis is to compare a short-stick to a long-stick lacrosse throw from a biomechanical perspective. This will involve a comparison of both position and velocity of the right upper extremity during a videotaped throw of a healthy college-aged subject. Members of this group include a lacrosse player from the University of Michigan as well as another who is interested in human motor control.