Reliability of “in-season” fitness assessments in youth elite soccer players: a working model for practitioners and coaches

Enright, Kevin; Morton, James P.; Iga, John; Lothian, Daniel; Roberts, Simon J.; Drust, Barry

doi:10.1080/24733938.2017.1411603

Cited by 32 publications

(36 citation statements)

References 27 publications

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“…Infrared timing gates (Microgate, Bolzano, Italy) were placed at the start and end of a measured 5 m distance. On the “Go” command, the subjects were instructed to sprint through the timing gates positioned as previously reported in literature [21]. No countermovement before the sprint was permitted.…”

Section: Methodsmentioning

confidence: 99%

Post-activation potentiation effect of eccentric overload and traditional weightlifting exercise on jumping and sprinting performance in male athletes

et al. 2019

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The aim of this study was to evaluate the post-activation potentiation (PAP) effects following eccentric overload (EOL) and traditional weightlifting (TW) exercise on standing long jump (SLJ), countermovement jump (CMJ), and 5 m sprint acceleration performance. Ten male athletes were involved in a randomized, crossover study. The subjects performed 3 sets of 6 repetitions of EOL or TW half squat exercise followed by SLJ, CMJ, and 5 m sprint tests at 1 min, 3 min and 7 min, in separate sessions using a randomized order. Bayes factor (BF10) was reported to show the strength of the evidence. Differences were found using EOL for SLJ distance at 3 min (BF10 = 7.24, +8%), and 7 min (BF10 = 19.5, +7%), for CMJ at 3 min (BF10 = 3.25, +9%), and 7 min (BF10 = 4.12, +10.5%). Differences were found using TW exercise for SLJ at 3 min (BF10 = 3.88, +9%), and 7 min (BF10 = 12.4, +9%), CMJ at 3 min (BF10 = 7.42, +9.5%), and 7 min (BF10 = 12.4, +12%). No meaningful differences were found between EOL and TW exercises for SLJ (BF10 = 0.33), CMJ (BF10 = 0.27), and 5 m sprint (BF10 = 0.22). In conclusion, EOL and TW exercises acutely increase SLJ and CMJ, but not 5 m sprint performance. The PAP time window was found between 3 min and 7 min using both protocols. This study did not find differences between EOL and TW exercises, and so both methodologies can be used to stimulate a PAP response.

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Section: Methodsmentioning

confidence: 99%

Post-activation potentiation effect of eccentric overload and traditional weightlifting exercise on jumping and sprinting performance in male athletes

et al. 2019

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“…This study formed part of the School Clinical Rugby Measure (SCRuM) project described elsewhere [11, 12, 18] and was conducted in two sequential parts. Adopting a pragmatic “in-season” approach previously used by Enright et al [19], the preliminary study established the absolute and relative reliability of each test item in the assembled SCRuM test battery. Forty-one elite U19 schoolboy rugby players completed all tests (Fig.…”

Section: Main Textmentioning

confidence: 99%

Qualities or skills discriminating under 19 rugby players by playing standards: a comparative analysis of elite, sub-elite and non-rugby players using the SCRuM test battery

2019

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Objective: Although schoolboy rugby is growing in popularity and played at different competitive levels in Zimbabwe, the influence of playing standard on qualities or skills of older male adolescent rugby players is unknown. Utilising a cross-sectional design, this study determined anthropometric, physiological characteristics and rugby-specific game skills defining elite under 19 (U19) schoolboy rugby players. Following development and subsequent assessment of test-retest reliability of School Clinical Rugby Measure (SCRuM) test battery, this study compared performance outcomes of elite rugby players (n = 41), sub-elite rugby players (n = 46) and non-rugby athletes (n = 26) to identify qualities or skills discriminating (i) elite from sub-elite and non-rugby players, and concomitantly (ii) sub-elite from non-rugby players. Results: 40 m speed test (p < 0.001, ES = 1.78) and 2 kg Medicine Ball Chest Throw test (p < 0.001, ES = 1.69) significantly discriminated elite U19 from sub-elite and non-rugby players. These tests further differentiated sub-elite from non-rugby athletes. Additionally, 1RM back squat (p = 0.009, ES = 0.57), 1RM bench press (p = 0.005, ES = 0.61), repeated high-intensity exercise test (p < 0.001, ES = 0.88) and passing ability test (p < 0.001, ES = 0.99) discriminated elite from sub-elite counterparts. These findings highlight important attributes linked to elite U19 schoolboy rugby in Zimbabwe. However, no significant differences were observed for sum of seven skinfold (p = 0.28), tackling (p = 0.08) and catching ability (p = 0.05).

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“…The intentions of TI and TD systems are to identify and develop young players with the potential of becoming successful senior professionals. However, priority is often given to players demonstrating superior ability at the time (Meylan et al, 2010 (Enright et al, 2017;Huijgen et al, 2014). Moreover, successful transition between age groups, and graduation from academy-senior ranks are reported to be influenced by physical performance characteristics (Emmonds et al, 2016).…”

Section: Physical Characteristics Of Youth Soccermentioning

confidence: 99%

“…Resultant of the influence that sufficient familiarisation may have on performance during maximal intermittent running tests (Doncaster, Scott, et al, 2018;Enright et al, 2017), researchers suggest that tests such as the YYIRT L1 be preceded by at least 1 pre-test prior to collecting data from this measure.…”

Section: Evaluating Running Characteristics Of Soccer -Endurancementioning

confidence: 99%

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Reliability and validity of field‐based fitness tests in youth soccer players

Dugdale

Arthur

Sanders

et al. 2018

European Journal of Sport Science

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IV-LIST OF FIGURES V-LIST OF TABLES VI-LIST OF ABBREVIATIONS CHAPTER 1-INTRODUCTION 1.1 Background 1.2 General aims of this thesis 1.3 Overview of thesis CHAPTER 2-REVIEW OF LITERATURE 2.1 Talent identification 2.1.1 Talent identification in soccer 2.1.2 Talent development 2.1.3 Limitations of talent identification 2.1.3.1 The relative age effect 2.1.3.2 Maturation-selection phenomenon 2.1.3.3 Growth and maturation 2.1.3.4 Challenges of talent identification 2.1.4 Limitations of talent development 2.1.5 Talent identification-summary 2.2 Physical characteristics of soccer 2.2.1 Physical characteristics of professional soccer 2.2.1.1 Running characteristics of professional soccer 2.2.1.2 Strength and power characteristics of professional soccer 2.2.1.3 Anthropometric and morphologic characteristics of professional soccer 2.2.1.4 Physical characteristics of professional soccer-summary 2.2.2 Physical characteristics of youth soccer 2.2.2.1 Running characteristics of youth soccer 2.2.2.2 Strength and power characteristics of youth soccer 2.2.2.3 Anthropometric and morphologic characteristics of youth soccer 2.2.2.4 Physical characteristics of youth soccer-summary 2.2.3 Physical characteristics of soccer-summary 2.3 Physical performance testing in soccer 2.3.1 Evaluating running characteristics of soccer 2.3.1.1 Evaluating running characteristics of soccerendurance 2.3.1.2 Evaluating running characteristics of soccerlinear sprint speed 2.3.1.3 Evaluating running characteristics of soccer-COD/agility 2.3.2 Evaluating strength and power characteristics of soccer 2.3.2.1 Evaluating strength characteristics of soccer 2.3.2.2 Evaluating power characteristics of soccer 2.3.3 Evaluating anthropometric and morphologic characteristics of soccer 2.3.4 Physical performance testing in soccer-summary 2.4 Physical performance testing for talent identification and development 2.4.1 Physical performance testing for talent identification 2.4.2 Physical performance testing for talent development 2.5 Literature review-summary 2.6 Aims VII-SYNTHESIS (LITERATURE REVIEW-CHAPTER 3) CHAPTER 3-RELIABILITY AND VALIDITY OF COMMONLY USED FIELD-BASED FITNESS TESTS IN YOUTH SOCCER PLAYERS 3.1 Introduction 3.2 Methods 3.3 Results 3.4 Discussion 3.5 Conclusion VIII-SYNTHESIS (CHAPTER 3-CHAPTER 4) CHAPTER 4-CHANGE OF DIRECTION AND AGILITY PERFORMANCE ASSESSMENT IN PROFESSIONAL YOUTH SOCCER PLAYERS 4.1 Introduction 4.2 Methods 4.3 Results 4.4 Discussion 4.5 Conclusion IX-SYNTHESIS (CHAPTER 4-CHAPTER 5) CHAPTER 5-A COMPARISON OF OBJECTIVE AND SUBJECTIVE EVALUATION METHODS OF PHYSICAL QUALITIES IN PROFESSIONAL YOUTH SOCCER PLAYERS 5.1 Introduction 5.2 Methods 5.3 Results 5.4 Discussion 5.5 Conclusion X-SYNTHESIS (CHAPTER 5-CHAPTER 6

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Reliability of “in-season” fitness assessments in youth elite soccer players: a working model for practitioners and coaches

Cited by 32 publications

References 27 publications

Post-activation potentiation effect of eccentric overload and traditional weightlifting exercise on jumping and sprinting performance in male athletes

Post-activation potentiation effect of eccentric overload and traditional weightlifting exercise on jumping and sprinting performance in male athletes

Qualities or skills discriminating under 19 rugby players by playing standards: a comparative analysis of elite, sub-elite and non-rugby players using the SCRuM test battery

Reliability and validity of field‐based fitness tests in youth soccer players

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