Abstract des Autors

The aim of this study was to determine the validity of an electronic based system (Training Tester™) to measure vertical jump performance. As reference criterion a force plate was used. Fifteen male elite junior team handball players performed, after a standardized warm-up program, five counter movement jumps. The result of the best trial was used for further data analysis. Vertical jump performance was assessed simultaneously with Training Tester™ and force plate. Subjects achieved significantly (t = 19.195, p < .001) greater jump heights with the Training Tester™ (13.29 ± 2.68 cm). Pearson correlation coefficient between both measurement methods was high (r = .922, p < .001). Consequently, criterion-related validity of the Training Tester™ could be demonstrated. In conclusion, this electronic measurement system provides a portable, cost-effective and time-saving tool to evaluate vertical jump performance and can be seen as well-proven alternative for testing in field situations. Verf.-Referat