Physiological and Sport-Specific Skill Response of Olympic Youth Soccer Athletes

Vanderford, M. L.; Meyers, Michael C.; Skelly, William A.; Stewart, Craig; Hamilton, Karyn L.

doi:10.1519/r-11922.1

Cited by 29 publications

(19 citation statements)

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“…While the standard T-test, pro shuttle, and long shuttle are basic criteria for the assessment of sports-related agility, 10,38,49 they may not adequately measure side-to-side differences, due to the equalization of cutting directions in performance of the test. For this reason, we modified these agility measures to increase reliance on a single limb during the task.…”

Section: Discussionmentioning

confidence: 99%

Utilization of Modified NFL Combine Testing to Identify Functional Deficits in Athletes Following ACL Reconstruction

Myer

Schmitt

Brent

et al. 2011

Journal of Orthopaedic & Sports Physical Therapy

200

193

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STUDY DESIGN Case control. OBJECTIVES To use modified NFL Combine testing methodology to test for functional deficits in athletes following anterior cruciate ligament (ACL) reconstruction following return to sport. BACKGROUND There is a need to develop objective, performance-based, on-field assessment methods designed to identify potential lower extremity performance deficits and related impairments in this population. METHODS Eighteen patients (mean ± SD age, 16.9 ± 2.1 years; height, 170.0 ± 8.7 cm; body mass, 71.9 ± 21.8 kg) who returned to their sport within a year following ACL reconstruction (95% CI: 7.8 to 11.9 months from surgery) participated (ACLR group). These individuals were asked to bring 1 or 2 teammates to serve as control participants, who were matched for sex, sport, and age (n = 20; mean ± SD age, 16.9 ± 1.1 years; height, 169.7 ± 8.4 cm; body mass, 70.1 ± 20.7 kg). Functional performance was tested using the broad jump, vertical jump, modified long shuttle, modified pro shuttle, modified agility T-test, timed hop, triple hop, single hop, and crossover hop tests. A 1-way multivariate analysis of variance (MANOVA) was used to evaluate group differences for dependent performance variables. RESULTS The functional performance measurements of skills requiring bilateral involvement of both lower extremities showed no group differences between the ACLR and control groups (P>.05). An overall group difference (P = .006) was observed for the combined limb symmetry index (LSI) measures. However, the modified double-limb performance tasks (long shuttle, modified agility T-test, and pro shuttle) were not, independently, sufficiently sensitive to detect limb deficits in individuals with ACL reconstruction. Conversely, the LSI on the distance measures of the single-limb performance tasks all provided moderate to large effect sizes to differentiate between the ACLR and control groups, as the individuals who had ACL reconstruction demonstrated involved limb deficits on all measures (P<.05). Finally, the LSI for the timed hop test was not different between groups (P>.05). CONCLUSIONS These findings indicate that, while unilateral deficits are present in individuals following ACL reconstruction, they may not be evident during bipedal performance or during modified versions of double-limb performance activities. Isolation of the involved limb with unilateral hopping tasks should be used to identify deficits in performance.

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Section: Discussionmentioning

confidence: 99%

Utilization of Modified NFL Combine Testing to Identify Functional Deficits in Athletes Following ACL Reconstruction

Myer

Schmitt

Brent

et al. 2011

Journal of Orthopaedic & Sports Physical Therapy

200

193

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“…Although the task of juggling a ball occurs infrequently during actual match play, juggling tests have been used as a test of soccer coordination (Hoare & Warr, 2000; Rösch et al, 2000; Vanderford et al, 2004). The tests typically involve tapping the ball with various body parts, while keeping the ball in the air, within a set time limit (see Table 2 for detailed methodology).…”

Section: Motor Skill Testsmentioning

confidence: 99%

“…These tests require players to pass the ball through the air against a wall, control the rebound and make further air‐borne passes against the wall, typically with a set time limit and toward specific target areas on the wall (Reilly & Holmes, 1983; McMorris et al, 1994; Vanderford et al, 2004;Table 2). Although a number of attributes are being assessed (including passing accuracy and control), this type of repeated wall‐volley passing lacks ecological validity.…”

Section: Motor Skill Testsmentioning

confidence: 99%

“…Recognizing this fact, some researchers have incorporated various elements of soccer within their skill tests. Zelenka et al (1967) used twelve 17–18‐year‐old players to validate such a “holistic” test, which has since been used by others (Abt et al, 1998; Vanderford et al, 2004). The test consisted of sprinting, changes of direction, jumping and crawling under a 90 cm athletic obstacle, slalom dribbling of the ball and passing the ball (using the left or right foot where indicated) into target areas.…”

Section: Motor Skill Testsmentioning

confidence: 99%

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Measuring soccer skill performance: a review

Ali

2011

Scandinavian Med Sci Sports

251

212

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The ability to execute skilled movement patterns efficiently and effectively is the most important aspect of soccer performance and players must apply cognitive, perceptual and motor skills to rapidly changing situations. There have been attempts to measure these parameters for talent identification (or development) purposes and skill acquisition and intervention research; the aim of this review is to examine the strengths and limitations of these tests. High levels of perceptual and cognitive skill are characteristics of those players who are able look in the right places for information and process this information efficiently before deciding on a suitable course of action. The motor skills required to successfully control, pass, dribble and shoot the ball at goal are fundamental skills of the soccer player and a variety of methods have been used to measure these aspects. The tests mentioned in this review vary in their complexity and the type of skill(s) they purport to measure. The assessment of choice must come down to a number of factors including cost, available time and space, number of athletes in the cohort and experience of researchers. Furthermore, consideration must be given to the aim(s) of the research/assessment and issues relating to validity and reliability.

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“…Els resultats obtinguts en la massa corporal i talla dels nostres participants són inferiors als obtinguts en diferents estudis amb jugadors nord-americans, grecs, de Nova Zelanda, espanyols i francesos (Christou et al, 2006;Gil et al, 2007;Huijgen, Elferink-Gemser, Post, & Visscher, 2009;Jullien et al, 2008;Lago-Peñas et al, 2014;Vanderford, Meyers, Skelly, Stewart, & Hamilton, 2004). Aquesta diferència de les variables antropomètriques amb països amb major desenvolupament pot ser deguda a l'expressió fenotípica d'una potencialitat genètica modulada per agents endògens i exògens (Fernández & Ruiz, 2012).…”

Section: Discussióunclassified

Característiques de joves futbolistes colombians en el terreny de joc

Reyes¹,

Ortega²,

Campo³

2016

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En el futbol, com en molts altres esports, l'estructura corporal, la força, la potència i la velocitat es relacionen amb el rendiment que presenten els esportistes en el terreny de joc (Lago-Peñas, Rey, Casáis, & Gómez-López, 2014; Norton & Olds, 2001). En diversos estudis realitzats amb jugadors de futbol professional es va observar que aquestes variables corporals i condicionals varien d'acord amb la posició que ocupen en el camp de joc (

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Physiological and Sport-Specific Skill Response of Olympic Youth Soccer Athletes

Cited by 29 publications

References 0 publications

Utilization of Modified NFL Combine Testing to Identify Functional Deficits in Athletes Following ACL Reconstruction

Utilization of Modified NFL Combine Testing to Identify Functional Deficits in Athletes Following ACL Reconstruction

Measuring soccer skill performance: a review

Característiques de joves futbolistes colombians en el terreny de joc

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