ArticleBiology of sport2024
Variations in strength-speed-power performance across the season: do true changes occur in elite rugby players?
Article in Biology of sport, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Acute caffeine supplementation in rugby players: a systematic review and meta-analysis of physical performance, sport-specific performance, perceptual responses, and physiological markers.Frontiers in nutrition · 2026Pooled it
- Strength and Power Responses to a Power-Oriented Resistance Training Model across an Entire Soccer Competitive Season.Journal of human kinetics · 2026Article
- Priming strategies to enhance sprint performance in highly trained athletes across sports: a systematic review and meta-analysis.Biology of sport · 2026Article
- Neuromechanical effects and predictive profiling of sprint priming strategies in elite youth sprinters.Biology of sport · 2026Article
- Priming Exercises and Their Potential Impact on Speed and Power Performance: A Narrative Review.Journal of human kinetics · 2025Review
- Effects of light-load vs. heavy-load jump squats as priming activities in Olympic female rugby sevens players.Biology of sport · 2025Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aimed to determine, through the use of a highly sensitive statistical tool, whether real changes in performance were present; and compare the rates of meaningful variations in strength, speed, and power parameters at different time-points during the competitive season in national team rugby players. Thirty-two players were assessed 5 times across the season using the following tests: squat jump and countermovement jump tests; 30-m sprint velocity; and one-repetition maximum (1RM) in the half-squat and bench-press exercises. A repeated-measures analysis of variance was conducted to test for differences between successive time-points. Individual coefficients of variation values were used to set target scores for post-measurements and examine whether changes in performance parameters were greater than the natural test variance, thus providing an indication of whether "true changes" occurred. No significant changes were detected in the vertical jump height, 1RM measures, and sprint velocity and momentum throughout the 11-month period (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.