Between-Day Reliability and Usefulness of a Fitness Testing Battery in Youth Sport Athletes: Reference Data for Practitioners

Sawczuk, Thomas; Jones, Ben; Scantlebury, Sean; Weakley, Jonathon; Read, Dale B.; Costello, Nessan; Darrall-Jones, Joshua David; Stokes, Keith; Till, Kevin

doi:10.1080/1091367x.2017.1360304

Cited by 31 publications

(30 citation statements)

References 31 publications

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“…Jump height was measured in centimetres using the Optojump system (Microgate, Bolzano, Italy). Participants were familiar with the CMJ protocol, which has previously been shown to have a typical error of 2.8% and smallest worthwhile change of 3.9% in this population (43). Due to the poor face validity of the CMJ test in a swimming population (23), the swimmers (n=2) did not take part in this test.…”

Section: Study Proceduresmentioning

confidence: 99%

Relationships Between Training Load, Sleep Duration, and Daily Well-Being and Recovery Measures in Youth Athletes

Sawczuk

Jones

Scantlebury

et al. 2018

Pediatric Exercise Science

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Section: Study Proceduresmentioning

confidence: 99%

Relationships Between Training Load, Sleep Duration, and Daily Well-Being and Recovery Measures in Youth Athletes

Sawczuk

Jones

Scantlebury

et al. 2018

Pediatric Exercise Science

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“…Fitness testing of athletes is commonplace within amateur and professional sports clubs [ 1 , 2 ], schools [ 3 ] and in the general population [ 4 ]. Strength and conditioning coaches (S&C coach) and sport scientists often administer “fitness testing batteries” for a number of different reasons.…”

Section: Introductionmentioning

confidence: 99%

“It’s Important, but It’s Not Everything”: Practitioners’ Use, Analysis and Perceptions of Fitness Testing in Academy Rugby League

McCormack

Jones

Scantlebury

et al. 2020

Sports

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A plethora of research exists examining the physical qualities of rugby league players. However, no research has investigated practitioners’ insights into the use, analysis and perceptions of such fitness testing data that is vital for applying research into practice. Therefore, this study aimed to examine practitioners’ (coaches and strength & conditioning [S&C] coaches) perceptions and challenges of using fitness testing and the development of physical qualities. Twenty-four rugby league practitioners were purposefully sampled and completed a semi-structured interview. Interviews were transcribed and thematically analysed identifying five themes (it’s important, but it’s not everything; monitoring; evaluation and decision making; motivation; and other external challenges). The theme of “it’s important, but it’s not everything” emerged as a fundamental issue with regard fitness testing and the use of such data and that physical data alone does not inform coaches decisions. There appears conflicts between coaches and S&C coaches’ perceptions and use of fitness data, identifying complexities of supporting players in multidisciplinary teams. Collectively, the findings highlight the multifaceted nature of academy rugby league and suggest that practitioners should utilise fitness testing to inform player evaluations, positively influence training and assist with decision making. Moreover, practitioners should understand the combination of factors that influence fitness testing and work collaboratively to enhance talent development strategies.

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“…hip height. These heights were chosen because knee (Cronin & Templeton, 2008;Shalfawi, Enoksen, Tønnessen, & Ingebrigtsen, 2012) and hip height (Sawczuk et al, 2017;Yeadon, Kato, & Kerwin, 1999) are commonly employed in literature, allowing for the findings of the present study to be transferred to other research in terms of measurement set-up.…”

Section: Methodsmentioning

confidence: 99%

“…Despite the development of progressive technologies such as dual beam or post-processing timing lights, the use of single beam systems is still widespread (Darrall-Jones, Jones, Roe, & Till, 2016;McFarland, Dawes, Elder, & Lockie, 2016;Roe et al, 2017;Sawczuk et al, 2017;Wong et al, 2017), possibly due to greater availability and lower costs (Haugen & Buchheit, 2016).…”

Section: Introductionmentioning

confidence: 99%

Accuracy of single beam timing lights for determining velocities in a flying 20-m sprint: Does timing light height matter?

Altmann

Spielmann

Engel

et al. 2018

jhse

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Background: The purpose of this study was to evaluate the accuracy of timing lights (TL) at different heights for measuring velocities during sprinting. Methods: Two sets of single beam TL were used to determine velocities reached in a flying 20-m sprint in 15 healthy and physically active male participants. In TL64, all TL were set up at a height of 64 cm, and in TL100, all TL were set up at 100 cm, respectively. Participants performed three valid trials. The recordings of high-speed video cameras were used as a reference. Results: ICC and Pearson's r values between both timing light heights and the reference system were almost perfect (0.969-0.991). Bland & Altman's LOA (95 %) indicated low systematic and unsystematic errors, with somewhat smaller LOA for TL100 (-0.013-0.121 m/s) than for TL64 (-0.060-0.120 m/s). Measures of betweentrial reliability of running velocities showed a high relative (ICC) and absolute (RMSE) reliability, with the reference system showing slightly better values in all reliability measures (ICC=0.935; RMSE<0.001 m/s) compared to TL64 and TL100 (ICC=0.894, 0.887; RMSE=0.107 m/s, 0.124 m/s, respectively). The usefulness, determined by comparing the typical error (TE) with the smallest worthwhile change (SWC), was considered as "OK" (TE ≈ SWC) for all three systems. Conclusions: Results suggest that TL at both heights (TL64 and TL100) can be considered as accurate, reliable, and useful in computing velocities during a flying 20-m sprint, and therefore can be recommended to both coaches and researchers.

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Between-Day Reliability and Usefulness of a Fitness Testing Battery in Youth Sport Athletes: Reference Data for Practitioners

Cited by 31 publications

References 31 publications

Relationships Between Training Load, Sleep Duration, and Daily Well-Being and Recovery Measures in Youth Athletes

Relationships Between Training Load, Sleep Duration, and Daily Well-Being and Recovery Measures in Youth Athletes

“It’s Important, but It’s Not Everything”: Practitioners’ Use, Analysis and Perceptions of Fitness Testing in Academy Rugby League

Accuracy of single beam timing lights for determining velocities in a flying 20-m sprint: Does timing light height matter?

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