Comparison of the 1RM test in the squat with guided bar and free bar
Abstract
Using percentages of one repetition maximum (1RM) to prescribe resistance training (RT) has been recommended, but some variables can influence the value of 1RM. The aim of this study was to determine whether there is difference in 1RM squat in the guided bar (1RMbg) and free bar (1RMbl) in young practitioners TR. Participated in 7 men (21.86 ± 4.06 years, 84.29 ± 9.55 kg and 1.77 ± 0.09 m) and 3 women (22.00 ± 4.36 years; 60.00 ± 7, 81 kg and 1.63 ± 0.05 m), healthy and trained at least for six consecutive months. There were two 1RMbg and 1RMbl tests randomly in two sessions separated by a minimum interval of 72 hours and a maximum of 7 days. We used the Student's t test for comparison of paired measurements, the significance level was set at p ≤ 0.05. Among men 1RMbg charge was 148.57 ± 33.38 kg and 1RMbl was 143.00 ± 35.54 kg (p = 0.2499) among women 1RMbg the load was 76.33 ± 22.59 kg and 1RMbl was 73.33 ± 32.15 kg (p = 0.8037), whereas men and women 1RMbg load was 126.90 ± 45.54 kg and 1RMbl was 122.10 ± 46.95 kg (p = 0.2686). There was no statistically significant difference between the 1RMbg and 1RMbl test, however, the individual relative difference ranged between -10% and 32.43%. We conclude that the 1RM value is not modified in the squat in guided and free bar, but previous experience of training influenced the individual results.
References
-Alves, J.C.C.; Scrivante B.F.; Silva, N.S.; Robert-Pires, C.M.; Magosso, R.F. Análise de diferença no teste de 1RM no exercício agachamento paralelo (90°) e completo na barra guiada. Revista Brasileira de Prescrição e Fisiologia de Exercicio. Vol. 6. Num. 36. p. 631-635. 2012. Disponível em: <http://www.rbpfex.com.br/index.php/rbpfex/article/view/465>
-Benton, M.J.; Swan, P.D.; Peterson, M.D. Evaluation of multiple 1RM strength trials in untrained women. J Strength Cond Res. Vol. 23. Num. 5. p. 1503-1507. 2009.
-Casonatto, J.; Polito, M.D. Hipotensão pós-exercício aeróbio: Uma revisão sistemática. Rev Bras Med Esporte. Vol. 15. Num. 2. p. 151-157. 2009.
-Farup, J.; Kjølhede, T.; Sørensen, H.; Dalgas, U.; Møller, A.B.; Vestergaard, P.F.; Ringgaard, S.; Bojsen-Møller, J.; Vissing, K. Muscle morphological and strength adaptations to endurance vs. Resistance training. J Strength Cond Res. Vol. 26. Num. 2. p. 398-407. 2012.
-Lima, P.; Araújo, R.; Farah, B.; Cavalcante, B.; Santos, M.; Ritti-Dias, R. Reprodutibilidade do teste de uma repetição máxima em exercícios de força com pesos livres. Rev Bras Ativ Fis Saúde. Vol. 18. Num. 3. p. 378-386. 2013.
-Mayhew, L.J.; Johnson, B.D.; LaMonte, M.J.; Lauber, D.; Kemmler, W. Accuracy of prediction equations for determining one repetition maximum bench press in women before and after resistance training. J Strength Cond Res. Vol. 22. Num. 5. p. 1570-1577. 2008.
-Moura, J.A.R.; Júnior, J.J.B.; Júnior, M.M.C. Exercício supino horizontal: comparação de RM executadas em máquinas e pesos livres em diferentes intensidades por indivíduos experientes e pouco familiarizados. Revista Brasileira de Prescrição e Fisiologia de Exercício. Vol. 5. Num. 30. p. 510-519. 2012. Disponível em: <>
-Prado, E.S.; Dantas, E.H.M. Efeitos dos exercícios físicos e aeróbio e de força nas lipoproteínas HDL, LDL e lipoproteína(a). Arq Bras Cardiol, Vol. 79. Num. 4. p. 429-433. 2002.
-Ratamess, N.A.Progression models in resistance training for healthy adults [ACSM position stand].Med Sci Sports Exerc. Vol. 41. Num. 3. p. 687-708. 2009.
-Ratamess, N.A.; Falvo, M.J.; Mangine, G.T.; Hoffman, J.R.; Faigenbaum, A.D.; Kang, J. The effect of rest interval length on metabolic responses to the bench press exercise.Eur J Appl Physiol. Vol. 100. p.1-17. 2007.
-Reiser, F.C.; de Souza, W.C.; Mascarenhas, L.P.G. Cinética e Cinemática do Agachamento na Coluna Vertebral: Estudo de Revisão. Revista Uniandrade. Vol. 16. Num. 1. p. 7-13. 2015.
-Reiser, F.C.; Souza, W.C.D.; Mascarenhas L.P.G.; Grzelczak, M.T. Atividade muscular de membros inferiores no exercício de agachamento.Acta brasileira do movimento humano-bmh. Vol. 4. Num. 4. p. 90-102. 2014.
-Ritti-Dias, R.M.; Avelar, A.; Salvador, E.P.; Cyrino, E.S. Influence of previous experience on resistance training on reliability of one-repetition maximum test.J Strength Cond Res. Vol. 25. Num. 5. p. 1418-1422. 2011.
-Ronei, O.S.; Gomes, N.; Radaelli, R.; Botton, C.E.; Brown, L.E.; Bottaro, M. Effect of range of motion on muscle strength and thickness. J Strength Cond Res. Vol. 26. Num. 8. p. 2140-2145. 2012.
-Runge, A. Análise eletromiográfica da musculatura peitoral maior nos exercícios: supino reto com barra, com halteres e supino na máquina. TCC Faculdade de Educação Física e Ciências do Desporto da Pontifícia Universidade Católica do Rio Grande do Sul. 2005.
-Schwanbeck, S.; Chilibeck, P.D.; Binsted, G. A. comparison of free weight squat to Smith machine squat using electromyography. J Strength Cond Res. Vol. 23. Num. 9. p. 2588-2591. 2009.
-Silva-Batista, C.; Tricoli, V.; Laurentino, G.C.; Batista, M.A.B.; Okuno, N.M.; Ugrinowitsch, C. Efeito da familiarização na estabilização dos valores de 1RM para homens e mulheres. Motriz. Vol. 17. Num. 4. p. 610-617. 2011.
-Spineti, J.; de Salles, B.F.; Rhea, M.R.; Lavigne, D.; Matta, T.; Miranda, F.; Fernandes, L.; Simão, R. Influence of exercise order on maximum strength and muscle volume in nonlinear periodized resistance training.J Strength Cond Res. Vol. 24. Num. 11. p. 2962-2969. 2010.
Authors who publish in this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication, with work simultaneously licensed under the Creative Commons Attribution License BY-NC which allows the sharing of the work with acknowledgment of the authorship of the work and initial publication in this journal.
- Authors are authorized to enter into additional contracts separately for non-exclusive distribution of the version of the work published in this journal (eg, publishing in institutional repository or book chapter), with acknowledgment of authorship and initial publication in this journal.
- Authors are allowed and encouraged to post and distribute their work online (eg, in institutional repositories or on their personal page) at any point before or during the editorial process, as this can bring about productive change as well as increase impact and impact. citation of published work (See The Effect of Free Access).