Technical determinants of tackle and ruck performance in International Rugby Sevens

Evolution of the physical characteristics of the French women's rugby players: A 10-year longitudinal analysis by position and team

Introduction

The study aimed to interpret the evolution of the physical performance of rugby sevens and rugby union French international players from 2009 to 2020.

Methods

631 players from the French national teams were divided into three groups: forwards, backs and sevens. The performances evaluated were anthropometric characteristics, strength tests (1 RM bench press and 1 RM pull-up), aerobic capacity (YoYo IR1 test) and speed tests (10 m, 20 m and 50 m). The best performance of each player over a two-year period was kept for the analysis. Fluctuations were observed across the decade.

Results

The anthropometric characteristics of female rugby sevens players tend to be taller and lighter than rugby union players. In rugby sevens, a moderate increase in maximal aerobic capacity was observed while sprint performances remained similar. Improvements in height and weight were observed over the last 10 years in rugby union players with a difference between the position. A moderate increase in sprinting performances and strength were observed both in backs and forwards.

Discussion

The overall improvement of strength and conditioning performances and anthropometrical evolution reflects the rugby environment characterized by the arrival of professional contracts and the structuration process of the clubs which allows a better quality of training and easier access to the infrastructures of the very high level.

Dimensions of Athlete-Coach Relationship and Sport Anxiety as Predictors of the Changes in Psychomotor and Motivational Welfare of Child Athletes after the Implementation of the Psychological Workshops for Coaches

(1) Background: Coach workshops based on seven principles (inspiration, explanation, expectation, support, reward, appreciation, growth, and winning) enhance the sport experience of adult athletes. Here, we report effects of such workshops with coaches of child athletes and the predictors of those changes. (2) Methods: Study participants were 8 coaches of 57 children aged between 9 and 12 years old (girls practicing gymnastics and boys practicing football). Three coaches of 28 children attended three workshops over 12 weeks, while a control group of 5 coaches of 29 children attended no workshops. Measures of motivation, relationships, anxiety, and psychomotor performance were taken on children before and after the intervention. (3) Results: There were significant effects of the workshop on motivation and psychomotor performance. The analysis of the predictors the intervention used in this study might be effective for enhancing psychomotor performance and motivation while considering components of Athlete-Coach relationship and anxiety levels as moderators. (4) Conclusions: The beneficial effects of the workshop are encouraging but need to be investigated with higher numbers of coaches and children from various sport disciplines.

Ten-season epidemiological study of match injuries in men's international rugby sevens

The aim of this study was to describe the incidence, nature and causes of match injuries in men's international rugby sevens and to compare these to values for international rugby fifteens. The study comprised a 10-season, whole population, prospective study of the Sevens World Series. Over the ten seasons, the overall incidence of injury was 122.4 (95% CI = 116.3 to 128.9) injuries/1000 player-match-hours and the mean severity of injury was 43.0 (95% CI = 40.3 to 45.7) days-absence. There was an increasing trend in the incidence of injury over the ten-season period (slope = 5.3 injuries/1000 player-hours/season, R² = 0.68, p = 0.003) but no trend in the mean severity of injury (slope = 0.02 days/season, R² < 0.01, p = 0.971). Head/face (15.7%), knee (15.6%), ankle (15.4%) and shoulder/clavicle (11.9%) were the most common injury locations and ligament sprain (30.5%), muscle strain (16.4%), concussion (12.6%) and haematoma/bruise (10.6%) the most common types of injury sustained. Being-tackled (33.1%), tackling (23.4%), running (16.1%) and collisions (12.4%) were the most common events leading to injury. These results indicate that the burden of injury in international rugby sevens is two to three times higher than that reported for international rugby fifteens.