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The reliability of the 1.2km shuttle run test for intermittent sport athletes.

... For the 1.2-km Shuttle Run Test, participants performed continuous return shuttle runs performed over increasing distances of 20 m, 40 m and 60 m (i.e. 2 × 20-m runs followed by 2 × 40-m runs followed by 2 × 60-m runs). Completion of the 20-m, 40-m and 60-m return shuttle runs was considered as one repetition, with the test requiring five completed repetitions (1.2-km in total) to be completed as quickly as possible (Brew & Kelly, 2014;Deuchrass et al., 2019;Kelly et al., 2015). The test commenced via a countdown signal from the test administrator. ...
... This score was then used for analysis. This test has been found to be highly reliable in both males and females (ICC = 0.99) (18). ...
With women’s club rugby in England now played on a semi-professional basis, coaches face new challenges in structuring training programmes. The purpose of the study was to examine the effects of two different training configurations on strength, speed and endurance in elite female rugby players (n = 20) who undertook six weeks of resistance training (RT) and endurance and technical training (ETT), twice per week. Participants were divided equally between a group that performed RT in the morning and ETT in the evening, separately (SEP); and a group which performed each training type combined (COMB) within one continuous session. In both groups, the intensity and volume of the applied training programmes were the same. Tests for one repetition maximum squat and bench press, 10 m sprint and maximum aerobic speed (MAS) were conducted. Repeated measures ANOVAs (Baseline – Follow-up), showed a significant effect of time for lower body strength (Squat: SEP 93.1-98.5 [+6.2%] vs. COMB 97.5-101.5 kg [+5.5%]), upper body strength (Bench press: SEP 61.0-65.0 [+6.9%] vs. COMB 60.7-63.1 kg [+4.1%]), 10 m (SEP 1.93-1.90 [+1.4%] vs. COMB 1.98-1.95 s [+1.6%]) and MAS (SEP 3.5-3.7 [4.2%] vs. COMB 3.5-3.7 m/s [5.9%]). After the intervention, no significant group x time interactions were detected for any of the utilised performance tests. For elite female rugby players, the combination of RT and ETT training types into the same session does not seem to be detrimental to overall physical fitness. Based on these results, coaches can programme RT and ETT separately, or in the same session, in female rugby players, based on their specific daily commitments.
Longitudinal changes in anthropometric and physical performance characteristics of International female rugby union players were evaluated across 5-seasons, according to field position. Sixty-eight international female rugby union players from a top 2 ranked international team, undertook anthropometric and physical performance measurements across five seasons. Anthropometric and physical performance changes occurred, with skinfolds decreasing between 2015 and 2017 and body mass increasing between 2017 and 2019. Single-leg isometric squat (SL ISO), 0–10 m momentum (0–10 Mom) and 20–30 m momentum (20–30Mom) were higher in 2018 and 2019 than all years. Front-row players were characterised by greater SL ISO and 1-RM bench press than inside and outside backs, with higher skinfolds and lower endurance levels than all positions. Between 2017 and 2019, front-row players had larger decreases and increases in endurance and one repetition maximum (1-RM) bench press, respectively, compared to all other positions. Forwards had the highest 0–10Mom and 20–30Mom, and scrum-half the lowest, while outside backs had faster 0–10, 30–40, and 40 m (TT40 m) times, and greater peak velocity (Vmax) compared to forward positions. These longitudinal findings show that physical performance has increased, with anthropometric and performance characteristics becoming more distinctive between positions, among elite female rugby union players.
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