The effect of repetitive rugby scrummaging on force output and muscle activity

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dc.citation.issue3
dc.citation.volume1
dc.contributor.authorCochrane DJ
dc.contributor.authorHarnett K
dc.contributor.authorLopez-Villalobos N
dc.contributor.authorHapeta JW
dc.coverage.spatialUnited States
dc.date.available2017-05
dc.date.available2017-03-24
dc.date.issued2017-06-01
dc.description.abstractDuring rugby scrummaging, front row forwards encounter high levels of force that has been suggested to cause transient fatigue and is likely to reduce subsequent performance. However, little is known about the effect of repetitive scrummaging on force output and onset of fatigue. Twelve male front row forwards (21.5 ± 2.3 yr; height 185.7 ± 4.4 cm; body mass 108.5 ± 7.1 kg) each performed three sets of five maximaleffort isometric scrums for 10 s, with 40 s rest separating each repetition; 2 min recovery was provided between each set. Force output and electromyography (EMG) of the right medial gastrocnemius (MG), biceps femoris (BF), gluteus maximus (GM), erector spinae (ES), rectus abdominis (RA), external oblique (EO), internal oblique (IO), and rectus femoris (RF) were assessed. There was no significant force decrement from performing 15 scrums and no fatigue was detected from EMG median frequency and mean amplitude. For training and practice purposes, coaches and trainers can be confident that 15 individual repetitive static scrums against a machine are unlikely to cause a reduction in force production and promote fatigue. However, the effect of rugbyrelated activities in conjunction with scrummaging requires further research to determine if transient fatigue is causal to scrummaging for subsequent performance
dc.description.publication-statusPublished online
dc.format.extentE89 - E93
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/30539091
dc.identifiersmio01-2017-0025
dc.identifier.citationSports Med Int Open, 2017, 1 (3), pp. E89 - E93
dc.identifier.doi10.1055/s-0043-108192
dc.identifier.eissn2367-1890
dc.identifier.elements-id354475
dc.identifier.harvestedMassey_Dark
dc.languageger
dc.publisherGeorg Thieme
dc.relation.isPartOfSports Med Int Open
dc.rightsCreative Commons Attribution Non-Commercial No Derivatives License
dc.subjectelectromyography
dc.subjectfatigue
dc.subjectfront row
dc.subjectisometric
dc.subjectperformance
dc.titleThe effect of repetitive rugby scrummaging on force output and muscle activity
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Health
pubs.organisational-group/Massey University/College of Health/School of Sport, Exercise and Nutrition
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Agriculture & Environment
pubs.organisational-group/Massey University/Other
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