The Acute Effects of Dynamic and Ballistic Stretching on Vertical Jump Height, Force, and Power

Résumé du livre

The purpose of this study was to compare the differences between 2 sets of ballistic stretching and 2 sets of a dynamic stretching routine on vertical jump performance. The intraclass reliability coefficients for maximum jump height, force, and power were also assessed using the Kistler Quattro Jump ® force plate. Methods. Ten healthy male college students, ages 22 to 34 years, volunteered to participate in this study. All subjects completed three individual testing sessions on three non-consecutive days. On each day the subjects completed one of three treatments (no stretch, ballistic stretch, and dynamic stretch). A paired samples t-test was used to test the effects of ballistic and dynamic stretching, respectively, on jumping height, force, and power performance scores. Hoyt's analysis of variance model, (MSs-MSi)/MSs, was used to estimate the reliability coefficients on jumping performance scores across three different trials. Results. A paired samples t-test documented that there were no statistical differences in jumping height, force, or power between no stretch and ballistic stretch, and between no stretch and dynamic stretch. The intraclass reliability coefficients were>.99 for jumping height,>0.94 for jumping force, and>.99 for jumping power. Conclusion. Both ballistic and dynamic stretching showed nonsignificant effects on vertical jumping performance in college male students, but the reliability coefficients were very high to measure jumping height, force, and power using the Kistler Quattro Jump ® force plate.