Erschienen in:
01.11.2006 | Original Article
Reliability of a 5 × 6-s maximal cycling repeated-sprint test in trained female team-sport athletes
verfasst von:
K. McGawley, D. Bishop
Erschienen in:
European Journal of Applied Physiology
|
Ausgabe 4/2006
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Abstract
The present study examined the reliability of work and power measures during a 5 × 6-s cycle ergometer test of repeated-sprint ability. Nine, well-trained, female soccer players performed five, 5 × 6-s repeated-sprint tests on a front-access cycle ergometer on separate days. Sprints were separated by 24 s of active recovery. Absolute measures of total work done (W
tot), total peak power (PPtot), work done during sprint 1 (W
1) and peak power output during sprint 1 (PP1) were recorded. Decrement scores in work done (W
dec) and peak power output (PPdec), and fatigue indices for work done (FI
W
) and peak power (FI
P
), were calculated. Significant improvements in all of the work and power measures were observed between trial 1 and subsequent trials (P < 0.05), but no significant differences were identified between trials 2, 3, 4 and 5. The same was true for increases in the decrement scores. The coefficient of variation (CV) was established to reflect within-subject reproducibility for each variable. The CV was significantly improved by the third trial for work done (W
tot CV: trials 1–2 = 5.5%; trials 3–4 = 2.8%), peak power (PPtot CV: trials 1–2 = 5.1%; trials 3–4 = 2.7%) and performance decrement scores (P < 0.05). The standard error of measurement (SEM) and intraclass correlation coefficient (ICC) were also calculated for each variable and expressed within 95% confidence intervals. It was concluded that two familiarisation trials are optimal for collecting reliable data from a 5 × 6-s repeated-sprint cycling test. Furthermore, due to the large variation around performance decrement it was suggested that decrement scores ought to be interpreted with caution.