Electromyographic activation during unilateral and bilateral shoulder press exercises among trained men

• Published in: AIP Conference Proceedings
• Main Author: Jahizi A.A.M.; Tan K.; Marsal M.Z.; Janep M.; Malek N.F.A.; Guo S.Z.; Nadzalan A.M.
• Format: Conference paper
• Language: English
• Published: American Institute of Physics 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85189310064&doi=10.1063%2f5.0148599&partnerID=40&md5=7a9a153f19566b9b1475be6c07eb59c7
• ISSN: 0094243X
• DOI: 10.1063/5.0148599

This study aim to compare electromyographic (EMG) activation between unilateral and bilateral shoulder press exercises. Thirty recreationally active, resistance-trained men (age: 20-23 years old) were recruited as research participants. Participants were asked to perform shoulder press exercise using 85% of their one repetition maximum (1RM) value unilaterally and bilaterally in a randomized order. EMG activation of anterior deltoid and triceps brachii were obtained during the movement using electromyogram. Repeated measure analysis of variance (ANOVA) was conducted to compare the EMG activations between both unilateral and bilateral shoulder press. Results showed that the EMG of both anterior deltoid and triceps brachii were higher during unilateral compared to bilateral methods in both concentric and eccentric phases. The results reflect the importance of including unilateral methods of resistance training in physical training session. © 2024 Author(s).