Analysis of movement patterns and work-to-rest ratios for different panels of South African Rugby Union referees during matchrefereeing

2011 ◽  
Vol 11 (2) ◽  
pp. 344-355 ◽  
Author(s):  
J. Wilbur Kraak ◽  
Dawie D.J. Malan ◽  
H. Pieter van den Berg
Keyword(s):  
South African ◽  
Movement Patterns ◽  
Rugby Union

scholarly journals The effect of prophylactic knee bracing on proprioception performance in first division rugby union players

2004 ◽  
Vol 16 (1) ◽  
pp. 33 ◽  
Author(s):  
TH Kruger ◽  
MF Coetsee ◽  
S Davies
Keyword(s):  
South African ◽  
Sports Medicine ◽  
Dynamic Balance ◽  
Rugby Union ◽  
Knee Brace ◽  
Balance Test ◽  
Kwazulu Natal ◽  
Test Order ◽  
The University ◽  
Rugby Players

Objective. To investigate the effects of prophylactic knee bracing on proprioceptive performance among first division rugby union players during a 2-minute Wilknox Quad Time Logger balancing task. Design. Each subject performed a 2-minute balancing task on the Wilknox Quad Time Logger. Test order, left or right leg, and the sequence of brace or non-brace, were randomised. Subjects were placed on the balancing board and instructed to balance for 2 minutes. Subjects performed 6 trials. Two days elapsed between testing. Each testing day involved 2 trials, 1 trial with and 1 without the prophylactic knee brace. Settings. Testing took place at the biokinetics laboratory of the University of Zululand. Subjects. Thirty playing (not injured) male rugby players, aged 22 - 30 years, participating in the KwaZulu-Natal club championships (2000). Outcome measure. Performance was measured in terms of time that balance was lost in a dynamic balance test. Peak proprioception was the best balancing performance recorded, and average proprioception the average balancing performance for all trials. Results. The findings showed an improvement of 17.9% in average proprioception times and 19.1% in peak proprioception times with the application of a prophylactic knee brace (p < 0.01). Conclusion. Prophylactic knee bracing improved proprioception performance of playing (uninjured) rugby players, and therefore may be responsible for the improvement in knee injury statistics reported in some studies on knee bracing. South African Journal of Sports Medicine Vol.16(1) 2004: 33-36

scholarly journals Fitness and body composition profiling of elite junior South African rugby players

2009 ◽  
Vol 18 (2) ◽  
pp. 38 ◽  
Author(s):  
J Durandt ◽  
S Du Toit ◽  
J Borresen ◽  
T Hew-Butler ◽  
H Masimla ◽  
...  
Keyword(s):  
Body Composition ◽  
South African ◽  
Body Fat ◽  
Age Groups ◽  
Rugby Union ◽  
The Body ◽  
Upper Body ◽  
Cross Sectional ◽  
Sprinting Speed ◽  
Rugby Players

Objective. The aim of this study was to describe the body composition, strength and speed characteristics of elite junior South African rugby players. Design. Cross-sectional. Setting. Field study. Subjects. Rugby players (16 and 18 years old, N = 174) selected for the South African Rugby Union National Green Squad. Outcome measures. Body composition, 10 m and 40 m speed, agility, 1RM bench press, underhand pull-ups, push-ups, multistage shuttle run. Results. The under-16 players were on average shorter (175.6 ± 5.7 v. 179.2 ± 6.7 cm), weighed less (76.5 ± 8.2 v. 84.8 ± 8.3 kg) had less upper body absolute strength (77.1 ± 11.8 kg v. 95.3 ± 16.7 kg) and muscular endurance (41 ± 12 v. 52 ± 15 push-ups) and aerobic fitness (87.1 ± 19.4 v. 93.5 ± 15.3 shuttles) than the under-18 players. There were no differences in body fat, sprinting speed (10 m and 40 m) or agility between the two age groups. There were differences between playing positions, with the props having the most body fat, strongest upper bodies, slowest sprinting speed, least agility and lowest aerobic capacity compared with players in the other positions. Conclusion. This study provides data for elite junior rugby players and can be used to monitor the progression of players after intervention while also assisting with talent identification for the different playing positions. South African Journal of Sports Medicine Vol. 18 (2) 2006: pp. 38-45

Movement patterns in under-19 rugby union players: Evaluation of physical demands by playing position

2014 ◽  
Vol 14 (3) ◽  
pp. 934-945 ◽  
Author(s):  
Javier Portillo ◽  
Pablo Abián ◽  
José A. Navia ◽  
Mauro Sánchez ◽  
Javier Abian-Vicen
Keyword(s):  
Movement Patterns ◽  
Rugby Union ◽  
Physical Demands

Indian Ocean humpback dolphin (Sousa plumbea ) movement patterns along the South African coast

2017 ◽  
Vol 28 (1) ◽  
pp. 231-240 ◽  
Author(s):  
Els Vermeulen ◽  
Thibaut Bouveroux ◽  
Stephanie Plön ◽  
Shanan Atkins ◽  
Wilfred Chivell ◽  
...  
Keyword(s):  
Indian Ocean ◽  
South African ◽  
Movement Patterns ◽  
The South ◽  
African Coast

scholarly journals Players’ and coaches’ knowledge and awareness of the BokSmartSafe Sixinjury prevention programme: an ecological cross-sectional questionnaire study

BMJ Open ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. e018575 ◽  
Author(s):  
Nicola Sewry ◽  
Evert Verhagen ◽  
Mike Lambert ◽  
Willem van Mechelen ◽  
James Brown
Keyword(s):  
South African ◽  
Behavioural Change ◽  
Rugby Union ◽  
Prevention Programme ◽  
Questionnaire Study ◽  
Injury Incidence ◽  
Cross Sectional ◽  
Targeted Marketing ◽  
Injury Prevention Programme ◽  
Marketing Approach

ObjectivesRugby has a high injury incidence and therefore BokSmart introduced theSafe Sixinjury prevention programme in 2014 in an attempt to decrease this incidence. In 2015, BokSmart used a ‘targeted marketing approach’ to increase the awareness and knowledge of theSafe Six. Therefore, the aim of this study was to determine the change in the knowledge of coaches and players of theSafe Sixprogramme, compared with the launch year, following a ‘targeted marketing approach’.DesignEcological cross-sectional questionnaire studySettingThe 2014–2016 South African rugby union youth week tournaments.ParticipantsQuestionnaires were completed by 4502 players and coaches who attended any of the four youth week tournaments during 2014–2016.Outcome measuresLogistic regression (adjusted OR, 95% CI) was performed in comparison to year prior to targeted marketing, separately for coaches and players, for changes in awareness and knowledge.ResultsThe awareness of theSafe Sixincreased significantly for players in 2015 (1.74 times (95% CI 1.49 to 2.04)) and in 2016 (1.54 times (95% CI 1.29 to 1.84)). Similarly for coaches, there was a 3.55 times (95% CI 1.23 to 9.99) increase in 2015 and a 10.11 times (95% CI 2.43 to 42.08) increase in 2016 compared with 2014. Furthermore, a player was significantly more likely to be aware of theSafe Sixif his coach was aware of the programme (p<0.05).ConclusionsThe knowledge and awareness of the BokSmartSafe Sixof both players and coaches increased in 2015 and 2016 (compared with 2014) since the launch of the programme. Coaches, the Unions/the South African Rugby Union and social media were the largest contributors to knowledge in coaches and players. While the ‘targeted marketing approach’ was associated with an increase in awareness, future studies should determine if this translates into behavioural change.

scholarly journals The state of women’s rugby union in South Africa: Recommendations for long-term participant development

2013 ◽  
Vol 25 (1) ◽  
pp. 28
Author(s):  
M Posthumus
Keyword(s):  
South Africa ◽  
South African ◽  
Rugby Union ◽  
Stage Of Development ◽  
Current State ◽  
Specific Stage ◽  
Gender Specific Differences ◽  
Future Strategy ◽  
Gender Specific

Several international rugby unions, including the South African Rugby Union, have adopted the long-term athlete development (LTAD) model, which is based on physiological principles that categorise players into specific stages of development. The original model proposes different age categories for boys and girls within each specific stage of development. This review: (i) discusses the current state of junior female rugby in South Africa; (ii) discusses the evidence for gender-specific differences in the LTAD model; and (iii) recommends a future strategy for LTAD within female rugby in South Africa, considering the current approaches of other international unions.

scholarly journals Playing time between senior rugby players of different ethnic groups across all levels of South African rugby, 2007- 2011

2012 ◽  
Vol 24 (3) ◽  
pp. 81 ◽  
Author(s):  
J Du Toit ◽  
J Durandt ◽  
J Joshua ◽  
H Masimla ◽  
M Lambert
Keyword(s):  
Ethnic Groups ◽  
South African ◽  
Rugby Union ◽  
The South ◽  
Playing Time ◽  
Rugby Players ◽  
Different Levels

Background. The South African Rugby Union (SARU) has had a continual challenge to make the game representative of players of all ethnic groups at all levels of play. In response to this challenge SARU has implemented several programmes designed to accelerate the development of players from previously disadvantaged areas with the goal of making the game more representative. However, the success of these programmes to transform the player profile at different levels of rugby cannot be evaluated because the players representing different ethnic groups have not been quantified in a systematic way.Objectives. To quantify the number and playing time of South African professional players (Vodacom, Currie Cup, Super Rugby and Springboks) from different ethnic groups from 2007 to 2011 to determine whether there are any changes in the profile of the players over this period.Methods. Playing time was recorded for all players in sanctioned matches. Players were divided into the ethnic classifications used by SARU (i.e. white, coloured and black).Results. At all levels of competition there were proportionally more white players, followed by coloured players and then black players. This pattern did not change from 2007 to 2011. Based on the ratio of number of players v. playing time, the white players played more time than expected at the Springbok level, whereas the black players played less than expected for the number of players from 2007 to 2011. At the Vodacom level the white players played more than expected in 2007 and 2008 and played less than expected in 2010 and 2011, whereas the black players played more than expected in 2010 and the coloured players played more than expected at the 2011 tournament. The Super Rugby tournamenthad the most consistency between players and expected playing time for the different ethnic groups.Conclusions. Despite the effort to support players from disadvantaged backgrounds since 1998 with facilitative programmes and selection targets, the professional game is still dominated by white players at all levels.

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