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Relationship of Performance Measures and Muscle Activity between a 180° Change of Direction Task and Different Countermovement Jumps

Reliability of Change of Direction and Agility Assessments in Youth Soccer Players

Physiology Exercise and Nutrition Research Group, Faculty of Health Sciences and Sport, University of Stirling, Scotland FK9 4LJ, UK
Department of Human Movement Science, Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200 MD Maastricht, The Netherlands
Author to whom correspondence should be addressed.
Sports 2020, 8(4), 51;
Received: 24 March 2020 / Revised: 14 April 2020 / Accepted: 16 April 2020 / Published: 18 April 2020
(This article belongs to the Special Issue Assessment and Development of Change of Direction Speed and Agility)
Considering the vast physical and neural developments experienced throughout adolescence, the reliability of physical performance may vary in youth populations. This study aimed to examine the reliability of change of direction (COD) and agility tests in youth soccer players. Altogether, 86 youth soccer players, aged 13.6 ± 2.0 years, volunteered to participate. Data were collected from a modified 505 COD test (m505COD) and the Y-sprint drill in both pre-planned (Y-SprintPRE) and reactive (Y-SprintREACT) conditions during 2 sessions, 7 days apart. Anthropometric data including body mass, standing stature, and sitting height were also collected. COD and agility tests demonstrated good reliability (ICC = 0.81–0.91; CV = 1.2–2.0; d = 0.00–0.31; p < 0.01) for our entire sample. However, we observed a small negative relationship between age and intersession differences for the Y-SprintPRE (r = −0.28; p = 0.04), and moderate negative relationships between both age (r = −0.41; p < 0.01), and maturity offset (r = −0.39; p < 0.01) for the Y-SprintREACT. Although the COD and agility tests adopted within this study possess good intersession reliability, we observed greater intersession differences for younger and less mature individuals. We suggest that while COD and agility tests may provide meaningful objective data for monitoring the development of youth soccer players, these tests should be used with caution when evaluating younger, more immature athletes. View Full-Text
Keywords: performance; adolescent; fitness testing; physical; maturation performance; adolescent; fitness testing; physical; maturation
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MDPI and ACS Style

Dugdale, J.H.; Sanders, D.; Hunter, A.M. Reliability of Change of Direction and Agility Assessments in Youth Soccer Players. Sports 2020, 8, 51.

AMA Style

Dugdale JH, Sanders D, Hunter AM. Reliability of Change of Direction and Agility Assessments in Youth Soccer Players. Sports. 2020; 8(4):51.

Chicago/Turabian Style

Dugdale, James H., Dajo Sanders, and Angus M. Hunter 2020. "Reliability of Change of Direction and Agility Assessments in Youth Soccer Players" Sports 8, no. 4: 51.

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