Characteristics of effective ball carries in Super 12 rugby

Sayers, Mark; Washington-King, J.

doi:10.1080/24748668.2005.11868341

Cited by 45 publications

(79 citation statements)

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“…35 Performing a forward step (defined as an 'evasive movement involving stepping motions originated from the outside leg and involving predominantly forwards motion'), displayed much greater positive outcomes than a lateral step (defined as an 'evasive movement involving predominantly sideways stepping motion') and a swerve (defined as an 'evasive movement initiated from the inside leg). 35 Dominating the tackle situation is essential to crossing the advantage line. When the ball-carrier was able to meet the tackler once he had crossed the advantage line, the ball was retained 67% of the time, compared with a ball retention rate of 44% when the advantage line was not reached.…”

Section: 30mentioning

confidence: 99%

“…Evasion techniques such as oblique running and forward stepping will reduce the magnitude of the collision forces, 35 thereby decreasing the effectiveness of the tackle while making the ball-carry safer and very effective. Ball-carriers should not run directly at defenders -this will not only decrease the effectiveness of the ball-carry, 35 but also place the ball-carrier and the tackler under unnecessary risk of injury.…”

Section: 30mentioning

confidence: 99%

“…Ball-carriers should not run directly at defenders -this will not only decrease the effectiveness of the ball-carry, 35 but also place the ball-carrier and the tackler under unnecessary risk of injury.…”

Section: 30mentioning

confidence: 99%

“…10,21,26,27 Effective and successful ball-carrying techniques have been well described. 22,35,37 run around the defence using speed'). 35 Performing a forward step (defined as an 'evasive movement involving stepping motions originated from the outside leg and involving predominantly forwards motion'), displayed much greater positive outcomes than a lateral step (defined as an 'evasive movement involving predominantly sideways stepping motion') and a swerve (defined as an 'evasive movement initiated from the inside leg).…”

Section: 30mentioning

confidence: 99%

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BokSmart: Safe and effective techniques in rugby union

Posthumus¹

2016

S Afr J SM

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As with any contact sport, rugby union has a high risk of injury.The majority of injuries result from contact phases of play such as the tackle, taking the ball into contact, the scrum, the lineout and the ruck and maul. Many techniques associated with a reduced risk of injury can be taught. The need for coaches to emphasise correct technique is extremely important and one of the few possible modes to reduce injuries, particularly non-fatal catastrophic injuries to the head, neck, brain and spine. This paper provides evidence of safe techniques during the contact phases of the game (tackling, taking the ball into contact, scrum setting and engagement, lineouts as well as rucks and mauls). Examples are also given to show that safe techniques often are the most effective techniques from a performance perspective.

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Section: 30mentioning

confidence: 99%

Section: 30mentioning

confidence: 99%

Section: 30mentioning

confidence: 99%

Section: 30mentioning

confidence: 99%

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BokSmart: Safe and effective techniques in rugby union

Posthumus¹

2016

S Afr J SM

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“…Such quantitative play analyses are applicable to all kinds of ball games, and several studies have been reported in rugby as well. For instance, by applying quantitative play analysis, McKenzie et al (1989) have explained heightening factors for the success of contact play of the ball carrier; Sayers & Washington-King (2005), for break play of the ball carrier; and Akutagawa (2007), for contact turnover play. However, no research has been reported in KO plays.…”

Section: Introductionmentioning

confidence: 99%

Factors to Heighten Success of Ball Acquisition in Kick-off and 50m Restart Kick Play in Rugby Football

Nakagawa

Hirose

2007

Int. J. Sport Health Sci.

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The objective of this research is to clarify the factors to heighten success of ball acquisition in kick-off and 50m restart kick (KO) play from the view point of the kicking side. For that purpose, the process of ball acquisition of the kicking side was divided into three play elements: the kick, the contest for the ball, and the prompt ruck/maul formation after KO. A total of 448 KO plays in 43 world class matches were taken as samples and correlation between performance in each play element and ball acquisition rate of the kicking side was quantitatively analyzed. It can be concluded from the results of analysis as follows: 1) In order to increase the success rate of ball acquisition in KO play with respect to the kicking side, an important factor is for the kicking side to take some action against the ball earlier than the opponent at an aerial contest for the ball. 2) In order to realize it, an important factor is to create situations where the receiving side cannot employ the lifting play. It is also implied that in fi eld practice, an effective way to improve the performances in KO play is to devise tactics and to have players achieve a mastery of techniques to realize the factors to heighten success of ball acquisition in KO play which have been made clear in this research.

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Biomechanical Determinants of Performance and Injury Risk During Cutting: A Performance-Injury Conflict?

et al. 2021

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Background Most cutting biomechanical studies investigate performance and knee joint load determinants independently. This is surprising because cutting is an important action linked to performance and non-contact anterior cruciate ligament (ACL) injuries. The aim of this study was to investigate the relationship between cutting biomechanics and cutting performance (completion time, ground contact time [GCT], exit velocity) and surrogates of non-contact ACL injury risk (knee abduction [KAM] and internal rotation [KIRM] moments) during 90° cutting. Design Mixed, cross-sectional study following an associative design. 61 males from multidirectional sports performed six 90° pre-planned cutting trials, whereby lower-limb and trunk kinetics and kinematics were evaluated using three-dimensional (3D) motion and ground reaction force analysis over the penultimate (PFC) and final foot contact (FFC). Pearson’s and Spearman’s correlations were used to explore the relationships between biomechanical variables and cutting performance and injury risk variables. Stepwise regression analysis was also performed. Results Faster cutting performance was associated (p ≤ 0.05) with greater centre of mass (COM) velocities at key instances of the cut (r or ρ = 0.533–0.752), greater peak and mean propulsive forces (r or ρ = 0.449–0.651), shorter FFC GCTs (r or ρ = 0.569–0.581), greater FFC and PFC braking forces (r = 0.430–0.551), smaller hip and knee flexion range of motion (r or ρ = 0.406–0.670), greater knee flexion moments (KFMs) (r = 0.482), and greater internal foot progression angles (r = − 0.411). Stepwise multiple regression analysis revealed that exit velocity, peak resultant propulsive force, PFC mean horizontal braking force, and initial foot progression angle together could explain 64% (r = 0.801, adjusted 61.6%, p = 0.048) of the variation in completion time. Greater peak KAMs were associated with greater COM velocities at key instances of the cut (r or ρ = − 0.491 to − 0.551), greater peak knee abduction angles (KAA) (r = − 0.468), and greater FFC braking forces (r = 0.434–0.497). Incidentally, faster completion times were associated with greater peak KAMs (r = − 0.412) and KIRMs (r = 0.539). Stepwise multiple regression analysis revealed that FFC mean vertical braking force and peak KAA together could explain 43% (r = 0.652, adjusted 40.6%, p < 0.001) of the variation peak KAM. Conclusion Techniques and mechanics associated with faster cutting (i.e. faster COM velocities, greater FFC braking forces in short GCTs, greater KFMs, smaller hip and knee flexion, and greater internal foot progression angles) are in direct conflict with safer cutting mechanics (i.e. reduced knee joint loading, thus ACL injury risk), and support the “performance-injury conflict” concept during cutting. Practitioners should be conscious of this conflict when instructing cutting techniques to optimise performance while minimising knee joint loading, and should, therefore, ensure that their athletes have the physical capacity (i.e. neuromuscular control, co-contraction, and rapid force production) to tolerate and support the knee joint loading during cutting.

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Characteristics of effective ball carries in Super 12 rugby

Cited by 45 publications

References 0 publications

BokSmart: Safe and effective techniques in rugby union

BokSmart: Safe and effective techniques in rugby union

Factors to Heighten Success of Ball Acquisition in Kick-off and 50m Restart Kick Play in Rugby Football

Biomechanical Determinants of Performance and Injury Risk During Cutting: A Performance-Injury Conflict?

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