Variations in muscle activation levels during traditional latissimus dorsi weight training exercises: An experimental study

Dynamic Medicine : DM
Gregory J LehmanAndrea Nalborczyk

Abstract

BACKGROUND: Exercise beliefs abound regarding variations in strength training techniques on muscle activation levels yet little research has validated these ideas. The purpose of the study is to determine muscle activation level, expressed as a percent of a normalization contraction, of the latissimus dorsi, biceps brachii and middle trapezius/rhomboids muscle groups during a series of different exercise tasks. METHODS: The average muscle activity during four tasks; wide grip pulldown, reverse grip pull down [RGP], seated row with retracted scapula, and seated rows with non-retracted scapulae was quantified during two 10 second isometric portions of the four exercises. A repeated measures ANOVA with post-hoc Tukey test was used to determine the influence of exercise type on muscle activity for each muscle. RESULTS & DISCUSSION: No exercise type influenced biceps brachii activity. The highest latissimus dorsi to biceps ratio of activation occurred during the wide grip pulldown and the seated row. Highest levels of myoelectric activity in the middle trapezius/rhomboid muscle group occurred during the seated row. Actively retracting the scapula did not influence middle trapezius/rhomboid activity. CONCLUSION: Variations in latissi...Continue Reading

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Citations

Aug 6, 2015·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Henrique Silvestre de FrançaCauê Vazquez La Scala Teixeira
Jan 28, 2017·The American Journal of Sports Medicine·Dorien BormsAnn M Cools
Aug 23, 2017·Journal of Human Kinetics·Ronald L SnarrMichael R Esco
Apr 24, 2009·Journal of Strength and Conditioning Research·Doug JohnsonJerry L Mayhew
Mar 1, 2012·Journal of Strength and Conditioning Research·Matthew J McAllisterTyler M Farney
Nov 1, 2013·Journal of Strength and Conditioning Research·Kristof De MeyAnn M Cools
Oct 15, 2009·Journal of Strength and Conditioning Research·Benjamin J Snyder, James R Leech
Jun 15, 2010·Journal of Strength and Conditioning Research·Stephen J LuskDaniel M Russell
Dec 22, 2016·Journal of Strength and Conditioning Research·Rafael P M CastanheiraMartim Bottaro
May 26, 2020·Perceptual and Motor Skills·Rafael A FujitaMatheus M Gomes
May 23, 2018·Journal of Strength and Conditioning Research·José I Pérez-OleaMikel Izquierdo
Apr 23, 2021·International Journal of Sports Physiology and Performance·Jonpaul Nevin, Paul M Smith

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Methods Mentioned

BETA
pulldown
pulldowns
pull down

Software Mentioned

EMG

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