The Relationship Between Kinematic Determinants of Jump and Sprint Performance in Division I Women Soccer Players

McCurdy, Kevin; Walker, John L.; Langford, George A.; Kutz, Matt; Guerrero, Juan M.; McMillan, Jeremy

doi:10.1519/jsc.0b013e3181fb3f94

Cited by 53 publications

(60 citation statements)

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“…Researchers have described anthropometric characteristics of high school [40], university [37,41,42], lower division domestic league [32], higher division domestic league [21,33] and national team players [10,13]. However, the anthropometric profile of elite youth players has yet to be fully examined.…”

Section: Applied Physiology Of Female Soccermentioning

confidence: 99%

“…Speed A plethora of studies [22,29,37,[40][41][42][43][44]56,57] have undertaken speed testing with female soccer players, however, the use of different assessment protocols limits comparison. For example, the distance that a player stands before the first timing gate is variable with 0 cm [41,58] and 88 cm [21] being used in the literature.…”

Section: 4)mentioning

confidence: 99%

“…For example, the distance that a player stands before the first timing gate is variable with 0 cm [41,58] and 88 cm [21] being used in the literature. Nevertheless, Table 5 highlights the studies to date that have described speed characteristics of female players.…”

Section: 4)mentioning

confidence: 99%

“…Furthermore, a significant relationship has been demonstrated between team success and average jump height and leg extension power, thus demonstrating the importance of this physical component for soccer-specific performance [60]. There are numerous reports within the literature detailing the power performance of female players across differing competition levels; university [37,41,42], high school [56,61], lower division domestic league [32,44], higher division domestic [20,21,35], national team youth [36] and senior national team players [11,36,43,49]. As with the other components of physical fitness previously described, the ability to compare data between studies is hindered by the different protocols and equipment adopted by researchers.…”

Section: 6)mentioning

confidence: 99%

“…Consequently, consideration should be given before including the DJ in a testing protocol [35]. Unilateral jump performance has a stronger correlation with sprint performance than bilateral jump performance and is a useful tool for assessing asymmetries, therefore the inclusion of unilateral jumps in a testing protocol is warranted [41]. Castagna and Castellini [36] have attempted to describe thresholds of acceptable vertical jump values for elite females using the data gathered from Italian national team players.…”

Section: 6)mentioning

confidence: 99%

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Applied Physiology of Female Soccer: An Update

et al. 2014

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The popularity and professionalism of female soccer has increased markedly in recent years, with elite players now employed on either a professional or semi-professional basis. The previous review of the physiological demands of female soccer was undertaken two decades ago when the sport was in its relative infancy. Increased research coupled with greater training and competition demands warrants an updated review to consider the effect on physical performance and injury patterns.The physical demands of match-play along with the influence of factors such as the standard of competition, playing position and fatigue have been explored. Total distance covered for elite female players is approximately 10 km, with 1.7 km completed at high-speed (>18 km.h -1 ). Elite players complete 28% more high-speed running and 24% more sprinting than moderate level players. Decrements in high-speed running distance have been reported between and within halves, which may indicate an inability to maintain highintensity activity. Although physical capacity of female players is the most thoroughly researched area comparisons are difficult due to differing protocols. Elite players exhibit maximal oxygen uptake (VO2max) values of 49.4 -57.6 ml.kg -1 .min -1 , Yo Yo Intermittent Endurance test level 2 (YYIE2) scores of 1774 ± 532 m (mean ± SD) and 20 m sprint times of 3.17 ± 0.03 s (mean ± SD). Reasons for the increased prevalence of anterior cruciate ligament injuries in females (2-6 times greater than males) are discussed with anatomical, biomechanical loading and neuromuscular activation differences being cited in the literature. This review presents an in-depth contemporary examination of the applied physiology of the female soccer player.Applied Physiology of Female Soccer 2 1) Introduction The last review of the physiological demands of female soccer was undertaken two decades ago [1] . At the time of that review, women's soccer was in its relative infancy with the inaugural Women's World Cup having taken place in 1991. The popularity of women's soccer has increased markedly in recent years with 29 million participants recorded in 2011, an increase of 34% from 2000 [2]. The 2015 Women's World Cup will have 24 participating nations, an increase of eight from the previous tournament.Since the previous review, increasing attention in the scientific literature has focused on women's soccer with over two thousand scientific articles published. There has been a drive towards professionalism in the sport with players at the highest level now employed on a professional or semi-professional basis. Current elite players are exposed to greater training volumes and competition demands than ever before, consequently these increased physical demands may have implications for both physical performance levels and injury patterns. Inline with these changes, advances in technology available for monitoring athletes has led to greater opportunities to scientifically support players and thus information regarding the modern elite female player...

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Section: Applied Physiology Of Female Soccermentioning

confidence: 99%

Section: 4)mentioning

confidence: 99%

Section: 4)mentioning

confidence: 99%

Section: 6)mentioning

confidence: 99%

Section: 6)mentioning

confidence: 99%

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Applied Physiology of Female Soccer: An Update

et al. 2014

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Reactive Strength Index and its Associations with Measures of Physical and Sports Performance: A Systematic Review with Meta-Analysis

et al. 2021

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Background Reactive strength index (RSI) is used frequently in the testing and monitoring of athletes. Associations with sports performance measures may vary dependent on the task but a literature synthesis has not been performed. Objectives The aim of this meta-analysis was to examine associations between RSI measured during rebound jumping tasks and measures of strength, linear and change of direction speed, and endurance performance. Methods A systematic literature search with meta-analysis was conducted using databases PubMed, SPORTDiscus, Web of Science, and Ovid. Inclusion criteria required studies to (1) examine the relationship between RSI and an independent measure of physical or sporting performance for at least one variable; and (2) provide rebound test instructions to minimise ground contact time and maximise displacement of the jump. Methodological quality was assessed using a modified version of the Downs and Black Quality Index tool. Heterogeneity was examined via the Q statistic and I2. Pooled effect sizes were calculated using a random-effects model, with Egger's regression test used to assess small study bias (inclusive of publication bias). Results Of the 1320 citations reviewed, a total of 32 studies were included in this meta-analysis. RSI was significantly and moderately associated with strength (isometric: r = 0.356 [95% CI 0.209-0.504]; isotonic: r = 0.365 [0.075-0.654]; pooled strength measures: r = 0.339 [0.209-0.469]) and endurance performance (r = 0.401 [0.173-0.629]). Significant moderate and negative associations were indicated for acceleration (r = − 0.426 [− 0.562 to − 0.290]), top speed (r = − 0.326 [− 0.502 to − 0.151]), and significant large negative associations were noted for change of direction speed (r = − 0.565 [− 0.726 to − 0.404]). Heterogeneity was trivial to moderate across all measures (I2 = 0-66%), and significant for isotonic strength and change of direction speed (p < 0.1). Evidence of small study bias was apparent for both acceleration and change of direction speed (p < 0.05). Conclusions We identified primarily moderate associations between RSI and independent measures of physical and sporting performance, and the strength of these relationships varied based on the task and physical quality assessed. The findings from this meta-analysis can help practitioners to develop more targeted testing and monitoring processes. Future research may wish to examine if associations are stronger in tasks that display greater specificity. Key points Key Points• Measures of physical and sporting performance are moderately (strength, speed, endurance performance) and largely (change of direction speed) associated with reactive strength index (RSI). • Large discrepancies exist concerning testing strategies for RSI, with variations reported for jump type, box drop height, equation used to calculate RSI, and units of measurement, indicating a need for consistency in approach to measuring RSI. • At present, no valid and reliable measure of RSI acquired horizontally exists, which may pr...

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Relationships Between Vertical Jump Metrics and Sprint Performance, and Qualities that Distinguish Between Faster and Slower Sprinters

Washif

Kok

2021

J. of SCI. IN SPORT AND EXERCISE

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Purpose This study aimed to investigate the relationships between vertical jump metrics and phases during a 60 m sprint. The variances in strength qualities between sprinters of different ability levels were also compared. Methods Eighteen young male elite sprinters (age: 18.1 ± 1.3 years; stature: 1.72 ± 0.07 m; body mass: 66.3 ± 6.2 kg) were assessed for squat (SJ), countermovement (CMJ), drop (DJ), and standing long jumps, a maximal load back-squat, and a 60-m sprint from a block-start. The relationships between sprint performances with all variables were analysed using correlation and multiple regression while discriminative parameters between fast (100 m time: ~ 10.50 s) and slow (~ 11.00 s) sprint groups were assessed using independent t-tests. Results Higher associations existed between vertical jumps and longer sprint distances, especially between SJ height and relative peak power with 10 m (r = − 0.47 and − 0.47, respectively), 30 m (− 0.71 and − 0.74), 60 m (− 0.76 and − 0.81), 10-30 m (− 0.80 and − 0.86), and 30-60 m (− 0.78 and − 0.84) sprint distances. Concurrently, variables such as relative maximal-strength, relative SJ parameters (height, peak force, and peak power), relative CMJ peak power, and reactive strength index (DJ from 35 cm height) had significant discriminative ability and correlations (P < 0.05) with sprint distances involving maximal velocity and flying-start. Additionally, a combination of SJ height and relative maximal-strength during back-squat accounted for 75% of the variance in 60 m sprint times. Conclusions Relative measures of multiple strength metrics may provide better insight regarding factors that enhance sprint performance. Adequate maximal-strength, high explosive power, and reactive strength seem necessary to improve sprint performance in young male elite sprinters.

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The Relationship Between Kinematic Determinants of Jump and Sprint Performance in Division I Women Soccer Players

Cited by 53 publications

References 18 publications

Applied Physiology of Female Soccer: An Update

Applied Physiology of Female Soccer: An Update

Reactive Strength Index and its Associations with Measures of Physical and Sports Performance: A Systematic Review with Meta-Analysis

Relationships Between Vertical Jump Metrics and Sprint Performance, and Qualities that Distinguish Between Faster and Slower Sprinters

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