Kineziologija, Vol. 44. No. 1., 2012.
Izvorni znanstveni članak
Assessing test-retest reliability of the portable brower speed trap ii testing system
Shaher A.I. Shalfawi
; Norwegian Olympic Sport Centre, Department of Physical Training, Oslo, Norway
Eystein Enoksen
; The Norwegian School of Sport Sciences, Department of Physical Performance, Oslo, Norway
Espen Tønnessen
; Norwegian Olympic Sport Centre, Department of Physical Training, Oslo, Norway
Jørgen Ingebrigtsen
; University of Nordland, Department of Physical Performance, Center for Practical Knowledge, Bodø, Norway
Sažetak
The aim of the present study was to assess the test-retest reliability of the Brower Speed Trap II running speed timing system. The test-retest reliability of the system was assessed by testing 52 physical education
students aged (±SD) 21.4 (±8.9) years. All participants were tested on 30-m sprint with 10-m, 20-m and 30-m split times. All measurements were obtained on two subsequent days. The results from this investigation indicate that the variations in the students’ performance between test day one and test day two was small and the intra-class correlation indicates a high repeatability. In the examination of the system reliability, the system did not show any marked systematic bias (p<.05) assessed by the paired sample t-test. However, the systematic bias and the random variation found indicate that the Brower Speed Trap II running speed timing system was a reliable testing instrument to be used in testing physical education students, and a useful
instrument for measuring running speed. However, in future studies it would be interesting to examine if the system were able to monitor the small changes in running speed that could result from increasing the training of an already elite athlete. Furthermore, we concluded that if comparison of overall values of running speed is intended, it is advisable to use the same testing system, because different systems give different results based on the errors associated with it.
Ključne riječi
running speed; heteroscedastic; limits of agreement
Hrčak ID:
83582
URI
Datum izdavanja:
30.6.2012.
Posjeta: 3.344 *