Abstract
Background
Baseball pitchers need trunk strength to maximize performance. The Pilates method of exercise is
gaining popularity throughout the country as a fitness and rehabilitation method of exercise. However,
very few studies exist that examine the effects of the Pilates method of exercise on trunk strength or
performance.
Objectives
Using a single subject, multiple baseline across subjects design, this study examines the effects of the
Pilates method of exercise on performance of double leg lowering, star excursion balance test, and
throwing velocity in college-aged baseball pitchers.
Methods
A convenience sample of three college baseball pitchers served as the subjects for this single subject
design study. For each subject, double leg lowering, star excursion balance test, and throwing speed
were measured prior to the introduction of the intervention. When baseline test values showed
consistent performance, the intervention was introduced to one subject at a time. Intervention was
introduced to the other subjects over a period of 4 weeks as they also demonstrated consistent
performance on the baseline tests. Intervention was continued with periodic tests for the remainder of
the 10 week trial.
Results
Each subject improved in performance on double leg lowering (increased 24.43-32.7%) and star
excursion balance test (increased 4.63-17.84%) after introduction of the intervention. Throwing speed
improved in two of the three subjects (up to 5.61%).
Discussion and Conclusions
The Pilates method of exercise may contribute to improved performance in double leg lowering, star
excursion balance tests, and throwing speed in college baseball pitchers.
Keywords: trunk strength, throwing speed, core stability
