Zhaowei Kong1, Fengxue Qi2, Qingde Shi3. 1. Faculty of Education, University of Macau, Macao, China. 2. Institute of Sport Science, University of Rostock, Rostock, Germany. 3. School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China.
Abstract
BACKGROUND/ OBJECTIVE: This research examines whether or not the Yo-Yo testing performance could reflect the repeatability of high-intensity intermittent dribbling in adolescent basketball players. METHODS: Thirty-six teenage basketball players aged 13-18 years were invited to participate in this study. RESULTS: A test-retest showed that the Yo-Yo intermittent endurance Level 2 (IE2) test with dribbling (intraclass correlation coefficient = 0.92; coefficient of variation = 12.6%; d = 0.24) and without dribbling (intraclass correlation coefficient = 0.83; coefficient of variation = 15.0%; d = 0.37) had acceptable reliability. The dribbling distance covered was significantly shorter than was the running performance of the Yo-Yo IE2 test in participants younger than 15 years (junior; 1138 ± 417 m vs. 910 ± 299 m, p < 0.01; d = 0.65), as well as in the entire study sample (1077 ± 398 m vs. 1267 ± 437 m, p < 0.05; d = 0.45), whereas there was no significant difference in the senior players between the two protocols (1396 ± 436 m vs. 1244 ± 427 m, p > 0.05; d = 0.35). Moderate to large correlations were found between running and dribbling performances in the senior sample (r = 0.57, p = 0.06), the junior sample (r = 0.87, p < 0.01), and the whole (r = 0.72, p < 0.01) sample, respectively. CONCLUSION: The results suggest that the Yo-Yo IE2 test could reflect the repeatability of high-intensity intermittent basketball dribbling performance, while dribbling skills may have different influences on high-intensity intermittent exercise capacity in adolescent players at different ages.
BACKGROUND/ OBJECTIVE: This research examines whether or not the Yo-Yo testing performance could reflect the repeatability of high-intensity intermittent dribbling in adolescent basketball players. METHODS: Thirty-six teenage basketball players aged 13-18 years were invited to participate in this study. RESULTS: A test-retest showed that the Yo-Yo intermittent endurance Level 2 (IE2) test with dribbling (intraclass correlation coefficient = 0.92; coefficient of variation = 12.6%; d = 0.24) and without dribbling (intraclass correlation coefficient = 0.83; coefficient of variation = 15.0%; d = 0.37) had acceptable reliability. The dribbling distance covered was significantly shorter than was the running performance of the Yo-Yo IE2 test in participants younger than 15 years (junior; 1138 ± 417 m vs. 910 ± 299 m, p < 0.01; d = 0.65), as well as in the entire study sample (1077 ± 398 m vs. 1267 ± 437 m, p < 0.05; d = 0.45), whereas there was no significant difference in the senior players between the two protocols (1396 ± 436 m vs. 1244 ± 427 m, p > 0.05; d = 0.35). Moderate to large correlations were found between running and dribbling performances in the senior sample (r = 0.57, p = 0.06), the junior sample (r = 0.87, p < 0.01), and the whole (r = 0.72, p < 0.01) sample, respectively. CONCLUSION: The results suggest that the Yo-Yo IE2 test could reflect the repeatability of high-intensity intermittent basketball dribbling performance, while dribbling skills may have different influences on high-intensity intermittent exercise capacity in adolescent players at different ages.
Authors: Humberto M Carvalho; Manuel J Coelho e Silva; António J Figueiredo; Carlos E Gonçalves; Carlo Castagna; Renaat M Philippaerts; Robert M Malina Journal: J Strength Cond Res Date: 2011-04 Impact factor: 3.775