The Effect of Different Warm-up Procedures on Bat Speed in Baseball

Abstract

The purpose of this study was to compare the effect of a new warm-up condition, overloaded arm weights (721 g each arm, [OA]), on the bat speed during warm-up and immediately after warm-up with traditional warm-up conditions such as no-extra mass warm-up (control condition, [CO]) and overloaded bat warm-up (885 g donut on a bat, [OB]) conditions. Twenty male sub-jects who had competitive baseball experience participated in this study. Electromagnetic motion capture system was used to cap-ture body segment motions. Results indicated that the OB showed significantly slower bat speed than the CO and OA did during warm-up (p