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A comparison between activation of pectoralis major and triceps brachii using different grip widths in the bench press
Halmstad University, School of Business, Engineering and Science.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Turnstedt, M. – Background. Resistance training has many positive effects on the human body and can be beneficial for people all ages. The bench press exercise is a commonly used exercise that targets many upper body muscles such as pectotralis major, triceps brachii, deltoideus, serratus anterior and the abdominal muscles. Variations of the bench press exercise are common where grip width variations are supposed to largely impact the muscles targeted. Some research has been done to accurately decide whether these theories are true, however more research is needed to definitely decide the effect on muscle activity of grip width in bench press. Aim. The aim of this study was to compare the muscle activity with surface electromyography (EMG) in pectoralis major and triceps brachii between wide, regular and narrow grip width in the bench press exercise. Method. 21 healthy males (23.19 ±2.5 years) volunteered to participate in this study. The raw EMG data from the bench presses were converted to root mean square and then average root mean square. The mean average muscle activation (in µV) was divided by a maximum voluntary isometric contraction (MVIC) and expressed as percent MVIC (%MVIC). Result. The results of the present study showed a statistically significantly higher muscle activation in the wide grip width compared to the narrow grip width in pectoralis major (p<0.005) and a statistically significantly higher muscle activation could be found in the narrow grip width compared to the wide grip width in triceps brachii (p<0.033). Conclusion. Practical use of this study is to use the narrow grip width in bench press when increased tricep brachii strength and size is desired and if increased pectoralis major strength and size is desired the wide grip bench press exercise is preferable.

Place, publisher, year, edition, pages
2017. , p. 26
Keywords [en]
Bench press, pectoralis major, triceps brachii, EMG
National Category
Natural Sciences Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hh:diva-34760OAI: oai:DiVA.org:hh-34760DiVA, id: diva2:1134687
Subject / course
Biomedicine
Educational program
Exercise Biomedicine, 180 credits
Supervisors
Examiners
Available from: 2017-08-21 Created: 2017-08-21 Last updated: 2017-08-21Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf