The effect of volume equated 1- versus 2-day formats of Nordic hamstring exercise training on fitness in youth soccer players: A randomised controlled trial

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dc.contributor.authorMoran, Jason
dc.contributor.authorVali, Norodin
dc.contributor.authorDrury, Ben
dc.contributor.authorHammami, Raouf
dc.contributor.authorTallent, Jamie
dc.contributor.authorChaabene, Helmi
dc.contributor.authorRamirez-Campillo, Rodrigo
dc.date.accessioned2023-03-27T16:34:17Z
dc.date.available2023-03-27T16:34:17Z
dc.date.issued2022-12
dc.descriptionIndexación: Scopuses
dc.description.abstractPurpose This randomised controlled trial examined the effect of an 8-week volume-equated programme of Nordic hamstring exercise (NHE) training, executed at frequencies of 1- or 2-days per week, on fitness (10 m and 40 m sprint, ‘505’ change of direction [COD] and standing long jump [SLJ]) in male youth soccer players (mean age: 16.4 ± 0.81 years). Method Players were divided into an experimental group (n = 16) which was further subdivided into 1-day (n = 8) and 2-day (n = 8) per week training groups and a control group (n = 8). Results There were significant group-by-time interactions for 10-m sprint (p<0.001, η2 = 0.120, d = 2.05 [0.57 to 3.53]), 40-m sprint (p = 0.001, η2 = 0.041, d = 1.09 [-0.23 to 2.4]) and COD (p = 0.002, η2 = 0.063, d = 1.25 [-0.09 to 2.59). The experimental group demonstrated a ‘very large’ effect size (d = 3.02 [1.5 to 4.54]) in 10-m sprint, and ‘large’ effect sizes in 40-m sprint (d = 1.94 [0.98 to 2.90]) and COD (d = 1.84 [0.85 to 2.83). The control group showed no significant changes. There were no significant differences between the 1-day and 2-day training groups. In three of the four tests (40 m, COD, SLJ) the 2-day group demonstrated larger effect sizes. Ratings of perceived exertion (RPE) were significantly lower in the 2-day group (p<0.001, 3.46 [1.83 to 5.04). Conclusion The NHE increases fitness in youth soccer players and there may be advantages to spreading training over two days instead of one. © 2022 Moran et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.es
dc.description.urihttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0277437#abstract0
dc.identifier.citationPLoS ONE, Volume 17, Issue 12 DecemberDecember 2022 Article number e0277437es
dc.identifier.doi10.1371/journal.pone.0277437
dc.identifier.issn1932-6203
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/47909
dc.language.isoenes
dc.publisherPublic Library of Sciencees
dc.rights.licenseAtribución 4.0 Internacional (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectAdolescentes
dc.subjectAthletic Performancees
dc.subjectExercisees
dc.subjectHamstring Muscleses
dc.subjectHumanses
dc.subjectMalees
dc.subjectMuscle Strengthes
dc.subjectSocceres
dc.subjectStanding Positiones
dc.titleThe effect of volume equated 1- versus 2-day formats of Nordic hamstring exercise training on fitness in youth soccer players: A randomised controlled triales
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