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The Journal of Sports Medicine and Physical Fitness 2020 Jun 23

DOI: 10.23736/S0022-4707.20.10996-4

Copyright © 2020 EDIZIONI MINERVA MEDICA

language: English

Seated row and biceps curl exercises present similar acute responses on muscle thickness, arm circumference, and peak force for elbow flexors after a resistance training session in recreationally-trained subjects

Paulo H. MARCHETTI , Kyle COOK, Roxanne C. NEELY, Vincent G. MARTINEZ, Leran LHANIE, Shahan AWAKIMIAN, Priscyla N. MARCHETTI, Farzad JALILVAND

Department of Kinesiology, California State University, Northridge, CA, USA


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BACKGROUND: The primary purpose of this study was to measure the acute effects on muscle thickness, arm circumference, and peak force between unilateral seated row and unilateral biceps curl exercises for elbow flexors after a RT session in recreationally-trained subjects.
METHODS: Fourteen resistance-trained men (25.3 ± 2.5years, 76.5± 6.4kg, 174.6 ± 7cm) performed 6 sets of 10RM and 2-min rest for one of two exercises (unilateral seated row exercise, USR or unilateral biceps curl, UBC). Muscle thickness (MT), arm circumference (AC), and peak force (PF) were measured before 10-min (control), pre-RT session and post- RT (immediately after, 15-min and 30-min). All acute RT variables were measured during both exercises: maximal number of repetitions (MNR), total number of repetitions (TNR), time under tension (TUT), rating of perceived exertion (RPE). Two-way ANOVAs were used to test differences between exercises and moments with an alpha of 5%.
RESULTS: For PF, there was a significant difference between pre- and post-0 for UBC and USR (p<0.001). For AC, there were significant differences between pre-test x post-0-min for both exercises (p<0.001). For MT, there were significant differences between pre-test x post 0-min (p<0.001), pre-test x post 15-min (p<0.001) for both exercises and pre-test x post 30- min only for UBC (p=0.006).
CONCLUSIONS: Both exercises induced similar increases in AC and MT for elbow flexors and reduction in peak force.


KEY WORDS: Exercise; Muscle; Kinesiology

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