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Article

Are sEMG, Velocity and Power Influenced by Athletes’ Fixation in Paralympic Powerlifting?

1
Federal Institute of Education, Science and Technology of Ceará (IFCE), Campus of Juazeiro do Norte, Juazeiro do Norte 63040-540, Brazil
2
Department of Physical Education, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
3
Group of Studies and Research of Performance, Sport, Health and Paralympic Sports (GEPEPS), Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
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Graduate Program of Physiological Science, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
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Graduate Program of Physical Education, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
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Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy
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Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Brazil
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Graduate Program of the School of Physical Education and Sports, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Brazil
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Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
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Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
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The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal
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Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
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Department of Physical Education and Special Motricity, Transilvania University of Brasov, 500068 Brasov, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Int. J. Environ. Res. Public Health 2022, 19(7), 4127; https://doi.org/10.3390/ijerph19074127
Received: 24 February 2022 / Revised: 26 March 2022 / Accepted: 28 March 2022 / Published: 31 March 2022
(This article belongs to the Special Issue Medicine in Sports and Exercise)
The bench press is performed in parapowerlifting with the back, shoulders, buttocks, legs and heels extended over the bench, and the use of straps to secure the athlete to the bench is optional. Thus, the study evaluated muscle activation, surface electromyography (sEMG), maximum velocity (MaxV) and mean propulsive velocity (MPV), and power in paralympic powerlifting athletes under conditions tied or untied to the bench. Fifteen experienced Paralympic powerlifting male athletes (22.27 ± 10.30 years, 78.5 ± 21.6 kg) took part in the research. The sEMG measurement was performed in the sternal portion of the pectoralis major (PMES), anterior deltoid (AD), long head of the triceps brachii (TRI) and clavicular portion of the pectoralis major (PMCL). The MaxV, MPV and power were evaluated using an encoder. Loads of 40%, 60%, 80% and 100% 1RM were analyzed under untied and tied conditions. No differences were found in muscle activation between the tied and untied conditions; however, sEMG showed differences in the untied condition between AD and TRI (F (3112) = 4.484; p = 0.005) in the 100% 1RM load, between PMCL and AD (F (3112) = 3.743; p = 0.013) in 60% 1RM load and in the tied condition, between the PMES and the AD (F (3112) = 4.067; p = 0.009). There were differences in MaxV (F (3112) = 213.3; p < 0.001), and MPV (F (3112) = 248.2; p < 0.001), between all loads in the tied and untied condition. In power, the load of 100% 1RM differed from all other relative loads (F (3112) = 36.54; p < 0.001) in both conditions. The tied condition seems to favor muscle activation, sEMG, and velocity over the untied condition. View Full-Text
Keywords: muscle activation; dynamic force; bench belts; bench press; parapowerlifting muscle activation; dynamic force; bench belts; bench press; parapowerlifting
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MDPI and ACS Style

Guerra, I.; Aidar, F.J.; Greco, G.; de Almeida-Neto, P.F.; De Candia, M.; de Araújo Tinoco Cabral, B.G.; Poli, L.; Filho, M.M.; Carvutto, R.; Silva, A.F.; Clemente, F.M.; Badicu, G.; Cataldi, S.; Fischetti, F. Are sEMG, Velocity and Power Influenced by Athletes’ Fixation in Paralympic Powerlifting? Int. J. Environ. Res. Public Health 2022, 19, 4127. https://doi.org/10.3390/ijerph19074127

AMA Style

Guerra I, Aidar FJ, Greco G, de Almeida-Neto PF, De Candia M, de Araújo Tinoco Cabral BG, Poli L, Filho MM, Carvutto R, Silva AF, Clemente FM, Badicu G, Cataldi S, Fischetti F. Are sEMG, Velocity and Power Influenced by Athletes’ Fixation in Paralympic Powerlifting? International Journal of Environmental Research and Public Health. 2022; 19(7):4127. https://doi.org/10.3390/ijerph19074127

Chicago/Turabian Style

Guerra, Ialuska, Felipe J. Aidar, Gianpiero Greco, Paulo Francisco de Almeida-Neto, Michele De Candia, Breno Guilherme de Araújo Tinoco Cabral, Luca Poli, Mauro Mazini Filho, Roberto Carvutto, Ana Filipa Silva, Filipe Manuel Clemente, Georgian Badicu, Stefania Cataldi, and Francesco Fischetti. 2022. "Are sEMG, Velocity and Power Influenced by Athletes’ Fixation in Paralympic Powerlifting?" International Journal of Environmental Research and Public Health 19, no. 7: 4127. https://doi.org/10.3390/ijerph19074127

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