Placing Greater Torque at Shorter or Longer Muscle Lengths? Effects of Cable vs. Barbell Preacher Curl Training on Muscular Strength and Hypertrophy in Young Adults

Bibliographic Data

ID15499162
AuthorsJoão Pedro Nunes (0000-0002-0164-249X, Universidade Estadual de Londrina, corresponding author), Jeferson Lucas Jacinto (0000-0003-1860-7778, Universidade Norte do Paraná), Alex S Ribeiro (0000-0002-0312-8857, Universidade Estadual de Londrina), Jerry L Mayhew (0000-0003-2062-1843, Truman State University), Masatoshi Nakamura (0000-0002-6100-5417, Niigata University of Health and Welfare), Danila M G Capel (Universidade Norte do Paraná), Leidiane R Santos (Universidade Estadual de Londrina), Leandro Dos Santos (0000-0001-7890-1448, Universidade Estadual de Londrina), Leandro Santos (0000-0002-7138-3147, Universidade Estadual de Londrina), Edilson S Cyrino (0000-0001-9016-8779, Universidade Estadual de Londrina), Andreo Fernando Aguiar (0000-0003-3337-2444, Universidade Norte do Paraná)
Year2020
Volume17
Issue16
Pages5859-5859
Publication date2020-08-13
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueInternational Journal of Environmental Research and Public Health (JOURNAL)
Journal identifiersISSN: 1661-7827 • E-ISSN: 1660-4601
PublisherMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph17165859
PMID32823490
OpenAlexW3048629534
LanguageEN
References cited24

Muscular strength and hypertrophy following resistance training may be obtained in different degrees depending on the approach performed. This study was designed to compare the responses of the biceps brachii to two preacher curl exercises, one performed on a cable-pulley system (CAB; in which a greater torque was applied during the exercise when elbows were flexed and biceps shortened) and one performed with a barbell (BAR; in which greater torque was applied when the elbows were extended and biceps stretched). Thirty-five young adults (CAB: 13 men, 5 women; BAR: 12 men, 5 women; age = 24 ± 5 years) performed a resistance training program three times per week for 10 weeks, with preacher curl exercises performed in three sets of 8-12 repetitions. Outcomes measured included elbow flexion peak isokinetic torque at angles of 20°, 60°, and 100° (considering 0° as elbow extended), and biceps brachii thickness (B-mode ultrasound). Following the training period, there were significant increases for both groups in elbow flexion peak torque at the 20° (CAB: 30%; BAR = 39%; p = 0.046), 60° (CAB: 27%; BAR = 32%; p = 0.874), and 100° (CAB: 17%; BAR = 19%; p = 0.728), and biceps brachii thickness (CAB: 7%; BAR = 8%; p = 0.346). In conclusion, gains in muscular strength were greater for BAR only at longer muscle length, whereas hypertrophy was similar regardless of whether torque emphasis was carried out in the final (CAB) or initial (BAR) degrees of the range of motion of the preacher curl in young adults

Curl (programming language · Muscle hypertrophy · Physical medicine and rehabilitation · Physical strength · Physics · Torque · Computer Science · Lower Extremity Biomechanics and Pathologies · Medicine · Sports injuries and prevention · Sports Performance and Training · Anatomy · Internal Medicine

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