Abstract
[Purpose] In this study we investigated the effect of different lengths of time of spinal mobilization exercise using a gym ball. [Subjects and Methods] Forty-eight healthy males were divided into four groups at random. Three groups did the spinal mobilization exercise using a gym ball for 60, 30 and 15 seconds, respectively, and the control group maintained a standing position for 15 seconds. The spinal mobilization was compared between before and after the exercise, and among the four groups, i.e. 60, 30, 15 seconds, and control. [Results] The total inclination and the sacral angle after the exercise were significantly larger in the exercise groups of 60, 30 and 15 seconds than before the exercise. [Conclusion] These results suggest that spinal mobilization exercise using a gym ball for 15 seconds significantly changes spinal mibilization.
