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Physiological, perceptual and performance responses associated with self-selected versus standardized recovery periods during a repeated sprint protocol in elite youth football players: A preliminary study
Gibson, Neil Brownstein, Callum Ball, Derek Twist, Craig
Gibson, Neil
Brownstein, Callum
Ball, Derek
Twist, Craig
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EPub Date
Publication Date
2017-05-31
Submitted Date
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Abstract
Purpose:
To examine the physiological and perceptual responses of youth footballers to a repeated sprint protocol employing standardized and self-selected recovery.
Methods:
Eleven male participants (13.7 ± 1.1 years) performed a repeated sprint assessment comprising 10 x 30 m efforts. Employing a randomized crossover design, repeated sprints were performed using 30 s and self-selected recovery periods. Heart rate was monitored continuously with ratings of perceived exertion (RPE) and lower body muscle power measured 2 min after the final sprint. The concentration of blood lactate was measured at 2, 5 and 7 minutes post sprinting. Magnitude of effects were reported using effect size (ES) statistics ± 90% confidence interval and percentage differences. Differences between trials were examined using paired student t-tests (p < 0.05).
Results:
Self-selected recovery resulted in most likely shorter recovery times (57.7%; ES 1.55 ± 0.5; p < 0.01), a most likely increase in percentage decrement (65%; ES 0.36 ±1 0.21; p = 0.12), very likely lower heart rate recovery (-58.9%; ES -1.10 ± 0.72; p = 0.05), and likely higher blood lactate concentration (p = 0.08-0.02). Differences in lower body power and RPE were unclear (p > 0.05).
Conclusion:
Self-selected recovery periods compromise repeated sprint performance.
Citation
Gibson, N., Brownstein, C., Ball, D., Twist, C. (2017). Physiological, perceptual and performance responses associated with self-selected versus standardized recovery periods during a repeated sprint protocol in elite youth football players: A preliminary study. Pediatric Exercise Science, 29(2), 186-193. DOI: 10.1123/pes.2016-0130
Publisher
Human Kinetics
Journal
Pediatric Exercise Science
Research Unit
DOI
10.1123/pes.2016-0130
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
As accepted for publication
Series/Report no.
ISSN
EISSN
1543-2920