PMID- 35730772 OWN - NLM STAT- MEDLINE DCOM- 20220623 LR - 20220623 IS - 1533-4287 (Electronic) IS - 1064-8011 (Linking) VI - 36 IP - 7 DP - 2022 Jul 1 TI - Not All Physical Performance Tests Are Related to Early Season Match Running Performance in Professional Rugby League. PG - 1944-1950 LID - 10.1519/JSC.0000000000003775 [doi] AB - Glassbrook, DJ, Fuller, JT, Wade, JA, and Doyle, TLA. Not all physical performance tests are related to early season match running performance in professional rugby league. J Strength Cond Res 36(7): 1944-1950, 2022-This study aimed to determine which physical tests correlate with early season running performance. Sixteen professional rugby league players performed the 30-15 intermittent fitness test (IFT), 1.2-km time trial, 1 repetition maximum (RM) barbell back squat, isometric midthigh pull (IMTP), countermovement jump (CMJ), barbell squat jump (SJ), and ballistic bench press throw (BBP). Bivariate Pearson's correlations and linear regression were used to compare physical tests with peak match running intensities recorded by a portable Global Positioning System and represented by peak match velocity and acceleration, as well as peak 1-, 4-, 6-, and 8-minute instantaneous acceleration/deceleration periods of play. Significant (p < 0.05) negative correlations (r = -0.55 to -0.60) were observed between the IFT and relative 1-, 4-, 6-, and 8-minute peaks, and between the relative 1RM back squat and relative 1-, 4-, 6-, and 8-minute peaks. Significant positive correlations (r = 0.52-0.84) were observed between the following physical tests and match performance pairs: IFT and peak acceleration; relative 1RM back squat and peak acceleration; SJ peak power (relative and absolute) and peak acceleration; CMJ peak force (relative and absolute) and peak acceleration; CMJ peak power (relative and absolute) and peak acceleration and 1-, 4-, 6-, and 8-minute peaks; and relative BBP peak power and peak velocity and peak acceleration. The results of this study highlight that not all generic tests of physical qualities are related to peak match running performance and only those with significant correlations are likely to be able to indicate how players may perform during match-play. CI - Copyright (c) 2021 National Strength and Conditioning Association. FAU - Glassbrook, Daniel J AU - Glassbrook DJ AD - Department of Health Professions, Faculty of Medicine, Health, and Human Sciences, Macquarie University, Sydney, Australia; and. FAU - Fuller, Joel T AU - Fuller JT AD - Department of Health Professions, Faculty of Medicine, Health, and Human Sciences, Macquarie University, Sydney, Australia; and. FAU - Wade, Jarrod A AU - Wade JA AD - South Sydney Rabbitohs Rugby League Club, Sydney, Australia. FAU - Doyle, Tim L A AU - Doyle TLA AD - Department of Health Professions, Faculty of Medicine, Health, and Human Sciences, Macquarie University, Sydney, Australia; and. LA - eng PT - Journal Article DEP - 20210219 PL - United States TA - J Strength Cond Res JT - Journal of strength and conditioning research JID - 9415084 SB - IM MH - *Athletic Performance MH - *Football MH - Humans MH - Muscle Strength MH - Physical Functional Performance MH - Rugby MH - *Running MH - Seasons EDAT- 2022/06/23 06:00 MHDA- 2022/06/24 06:00 CRDT- 2022/06/22 08:12 PHST- 2022/06/22 08:12 [entrez] PHST- 2022/06/23 06:00 [pubmed] PHST- 2022/06/24 06:00 [medline] AID - 00124278-202207000-00026 [pii] AID - 10.1519/JSC.0000000000003775 [doi] PST - ppublish SO - J Strength Cond Res. 2022 Jul 1;36(7):1944-1950. doi: 10.1519/JSC.0000000000003775. Epub 2021 Feb 19.