Open Access Thesis
Blocking is an important part in the game of volleyball. Previous research has shown that the swing blocking style leads to a greater jump height, penetration over the net and effective blocking area compared to the traditional blocking method. No available research has been found investigating the differences in landing. The purpose of this study was to examine the differences in landing impulses, landing time and vertical ground reaction forces (vGRF) between the traditional and swing blocking style in volleyball. Therefore, eight female collegiate volleyball players were filmed in high definition at 60Hz performing successful trials of both blocking styles. The videos were digitized and analyzed regarding the following variables: landing time, landing impulse, point of lowest COM, peak vGRF and average vGRF during the landing phase. Statistical analysis revealed that the landing impulse is bigger when subjects performed the swing blocking style compared to the traditional blocking style (p<0.05). All other variables showed to be similar between the two methods. These results reveal that although athletes jump higher performing the swing blocking style, their landing times do not differ. The peak vGRF was also similar between the groups, which indicates that the risk of injury due to high peak forces is alike. Having found a significant higher impulse in the swing blocking style without differences in average vGRF during the landing phase and landing time indicates that some subjects respond to greater jump height with a longer landing time and some by applying greater forces.
Date of Award
Master of Arts
School of Health, Physical Education, and Leisure Services
Travis Ficklin, Chair
1 PDF file (v, 43 pages)
©2016 Jana Geertruida Braakhuis
Braakhuis, Jana Geertruida, "Differences in landing impulses between the traditional and swing blocking style in volleyball" (2016). Electronic Theses and Dissertations. 294.
Available for download on Wednesday, August 29, 2018