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Motor control of the trunk during a modified clean and jerk lift
Örebro University, School of Health and Medical Sciences, Örebro University, Sweden. Orebro University Hospital. Family Medicine Research Centre, Örebro County Council, Örebro, Sweden; The Swedish School of Sport and Health Sciences, Stockholm, Sweden.ORCID iD: 0000-0003-3474-3200
The Swedish School of Sport and Health Sciences, Stockholm, Sweden; Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
The Swedish School of Sport and Health Sciences, Stockholm, Sweden.
2014 (English)In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 24, no 5, 758-763 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of the present study was to investigate the pattern of trunk muscle activation and intra-abdominal pressure (IAP) in a somewhat modified version of the clean and jerk lift. Nine healthy physically active male amateurs performed the exercise with a 30-kg barbell. Muscle activity was registered with electromyography from transversus abdominis (TrA) and obliquus internus (OI) using intramuscular electrodes and from rectus abdominis (RA) and erector spinae (ES) with surface electrodes. IAP was recorded with a nasogastric catheter. Measurements were made in various static positions throughout the lift and in the transitional phases separating them, both during lifting and lowering. The results demonstrated that the innermost abdominal muscle, TrA, showed increased activation levels in the two highest positions, whereas ES was most active, together with the highest IAP, in the lowest position. OI and RA showed generally little activation and no obvious trend throughout the lift. The results strengthen the view of a contributing role of TrA to the upright control of the trunk and indicate that the clean and jerk lift might constitute a whole-body exercise, still targeting the TrA muscle, in late-stage rehabilitation, especially for athletes during return to sports.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2014. Vol. 24, no 5, 758-763 p.
Keyword [en]
core stability, electromyography, intra-abdominal pressure, posture, transversus abdominis, weightlifting
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:oru:diva-38517DOI: 10.1111/sms.12064ISI: 000342743300013PubMedID: 23489349Scopus ID: 2-s2.0-84875017128OAI: oai:DiVA.org:oru-38517DiVA: diva2:762247
Note

Funding Agency:

Swedish National Centre for Research in Sports

Available from: 2014-11-11 Created: 2014-11-11 Last updated: 2017-03-26Bibliographically approved

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Crommert, Martin Eriksson
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