WHAT IS THE STUDY?
This study is examining the effect of a 6-week hip and core strengthening program on shoulder and elbow motion during pitching. Participants are 13-18 years old who pitch in at least one game per week on average during the season. Players will either be assigned to the control group or the strengthening program group. In the strengthening group, players will be taught a hip and core strengthening program and will be expected to complete it daily for 6 weeks. In the control group, players will continue to train as they were before enrolling in the study.
WHY HIP AND CORE STRENGTHENING?
The forces generated by the hip muscles during throwing are vital to the initiation and transfer of power to the arm. Electromyography (EMG) has shown that the legs and trunk provide rotational momentum for the arm and create over 50% of the total force and kinetic energy in a tennis serve. Other studies have shown that as a game progresses, players first show fatigue in their hip and core muscles and then lose their correct pitching form. In order to keep the same speed of their pitch while tired, players often use poor form and place themselves at risk for injury. We hope that using this conditioning program will strengthen the hip and core muscles and allow pitchers to continue pitching with proper form, therefore decreasing injuries.
WHAT WILL THE PLAYER BE EXPECTED TO DO?
When the player and parents decide to participate, the player will have baseline measurements taken, including hip range of motion, hip strength and the single leg squat test. Next, players will pitch while there are 1-inch markers attached to their arms and legs, which help us track body movements. If assigned to the strengthening group, players will be instructed on the proper completion of 10 exercises and will be instructed to do these daily before their regular practice sessions for 6 weeks. The program takes 10-15 minutes to complete. Players will also fill out a weekly compliance log of how often they do the exercises. The same tests will be repeated after the player has finished the 6 week program and then again after 6 months.
WHERE WILL THE TESTING TAKE PLACE?
The testing will take place at the new Rush University Medical Center Sports Training Facility in Oak Brook, IL. If you believe you or your patients might qualify for one of our clinical trials or wish to be evaluated, please contact our research administrator, Kavita Ahuja, MD at (312) 563-2214 or firstname.lastname@example.org.
WHAT ARE THE RISKS AND BENEFITS?
There is minimal risk associated with participating. Risks include injury from pitching, muscle soreness or discomfort associated with completing the hip and core strengthening program. Potential benefits include improvement in the players’ pitching mechanics and/or velocity. However, that result cannot be guaranteed.