SciELO - Scientific Electronic Library Online

 
vol.12 issue3Training level does not influence the rating of perceived exertion during an incremental testPhysical working capacity and maximal steady state of heart rate author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Brasileira de Cineantropometria & Desempenho Humano

On-line version ISSN 1980-0037

Rev. bras. cineantropom. desempenho hum. vol.12 no.3 Florianópolis May/June 2010

https://doi.org/10.5007/1980-0037.2010v12n3p164 

ARTIGO ORIGINAL

 

Efeito do step-training no aumento da força muscular em mulheres idosas saudáveis

 

Effect of a step-training program on muscle strength in older women

 

 

Daniela Coelho ZazáI; Hans-Joachim Karl MenzelII; Mauro Heleno ChagasII

ICentro Universitário de Belo Horizonte. Departamento de Ciências Biológicas, Ambientais e da Saúde. Laboratório de Biomecânica, Belo Horizonte, MG. Brasil.
IIUniversidade Federal de Minas Gerais. Departamento de Esportes. Laboratório de Biomecânica. Belo Horizonte. MG. Brasil.

Correspondencia para

 

 


RESUMO

O step-training é uma atividade física associada com aumento da força de membros inferiores. A força muscular é um componente crítico para a manutenção da capacidade funcional. O objetivo deste estudo foi verificar o efeito de seis semanas de step-training nos parâmetros trabalho e potência de membros inferiores em mulheres idosas. Treze mulheres saudáveis e ativas se voluntariaram a participar do estudo. Todas foram submetidas a aulas de step-training, três vezes por semana, durante 60 minutos cada. As variáveis da força muscular dos extensores e flexores do joelho foram mensuradas por meio de um dinamômetro isocinético Biodex System 3 Pro. Trabalho e potência muscular foram mensurados nas velocidades angulares de 60 e 180°/s. Diferença significativa (p<0.05) foi encontrada no trabalho para os músculos flexores do joelho, entre o pré e pós-teste, nas velocidades de 60 e 180°/s. Houve diferença significativa (p<0.05) para o trabalho nos músculos extensores na comparação pré e pós-teste, na velocidade angular de 60°/s. Diferenças significativas foram observadas na potência muscular na comparação pré e pós-teste, para os músculos flexores na velocidade angular de 60°/s (p<0,05) e para os músculos extensores do joelho nas velocidades angulares de 60 e 180°/s (p<0,05). Concluindo, o step-training pode ser recomendado como uma atividade física alternativa para ser utilizada com pessoas idosas, objetivando aumento do desempenho de força (trabalho e potência) dos músculos extensores e flexores do joelho.

Palavras-chave: Trabalho; Envelhecimento; Treinamento


ABSTRACT

Step-training is associated with strength improvement of the lower limbs. Muscle strength is a critical component for the maintenance of functional capacity. The objective of the present study was to determine the effect of 6 weeks of step-training on work and power of the lower limbs in older women. Thirteen healthy and active women volunteered to participate in the study. All subjects underwent step-training classes three times per week for 60 min. Strength variables of the knee extensor and flexor muscles were measured with a Biodex System 3 Pro isokinetic dynamometer. Muscle work and power were assessed at an angular velocity of 60 and 180°/s. A significant difference (p<0.05) in knee flexor muscle work was observed between pre- and post-test at 60 and 180°/s. There was a significant difference (p<0.05) in knee extensor muscle work between pre- and post-test at 60°/s. Significant differences were observed between pre- and post-test values of knee flexor muscle power at 60°/s (p<0.05) and knee extensor muscle power at 60 and 180°/s (p<0.05). In conclusion, step-training can be recommended as an alternative physical activity to increase strength performance (work and power) of the knee extensor and flexor muscles in older subjects.

Keywords: Work; Aging; Training


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

REFERÊNCIAS BIBLIOGRÁFICAS

Lemura LM, Von duvillard SP, Mookerjee S. The effects of physical training on functional capacity in adults. J Sports Med Phys Fitness 2000;40(1):1-10.         [ Links ]

Akima H, Kano Y, Enomoto Y, Ishizu M, Okada M, Oishi Y, et al. Muscle function in 164 men and women aged 20-84 yr. Med Sci Sports Exerc 2001;33(2):220-226.         [ Links ]

Lindle RS, Metter EJ, Lynch NA, Fleg JL, Fozard JL, Tobin J, et al. Age and gender comparisons of muscle strength in 654 women and men aged 20-93yr. J Appl Physiol 1997;83(5):1581-1587.         [ Links ]

Frontera WR, Meredith CN, O'reilly KP, Knuttgen HG, Evans WJ. Strength conditioning in older men skeletal muscle hypertrophy and improved function. J Appl Physiol 1988;64(3):1038-1044.         [ Links ]

Snow CM. Exercise effects on falls in frail elderly: focus on strength. J Appl Biomech 1999(1):15:84-91.         [ Links ]

Robinovitch SN, Hsiao ET, Sandler R, Cortez J, Liu Q, Paiement GD. Prevention of falls and fall-related fractures through biomechanics. Exerc Sport Sci Rev 2000;8(1):74-79.         [ Links ]

Beissner KL, Collins JE, Holmes H. Muscle force and range of motion as predictors of function in older adults. Phys Ther 2000;80(6):556-563.         [ Links ]

Radin EL, Yang KH, Riegger C, Kish VL, O'Connor JJ. Relationship between lower limb dynamics and knee joint pain. J Orthop Res 1991;9(3):398-405.         [ Links ]

American College of Sports Medicine-ACSM. Position stand on exercise and physical activity for older adults. Med Sci Sports Exerc 1998;30(6):992-1008.         [ Links ]

Chandler JM, Duncan PW, Kochersberger G, Studenski S. Is lower extremity strength gain associated with improvement in physical performance and disability in frail, community-dwelling elders? Arch Phys Med Rehabil 1998;79(1):24-30.         [ Links ]

Häkkinen K, Kraemer WJ, Newton RU, Alen M. Changes in eletromyographic activity, muscle fiber and force production characteristics during heavy resistance/power strength training in middle-aged and older men and women. Acta Physiol Scand 2001;171(1):51-62.         [ Links ]

Andersen LL, Andersen JL, Magnusson P, Suetta C, Madsen JL, Christensen LR, et al. Changes in the human muscle force-velocity relationship in response to resistance training and subsequent detraining. J Appl Physiol 2005;99(1):87-94.         [ Links ]

Orr R, Vos NJ, Singh Na, Ross DA, Stavrinos TM, Fiatarone M. Power training improves balance in healthy older adults. J Gerontology 2006;61A(1):78-85.         [ Links ]

Koenig JM, Jahn DM, Dohmeier TE, Cleland JW. The effect of bench step aerobics on muscular strength, power and endurance. J Strength Cond Res 1995;9(1):43-46.         [ Links ]

Dyson RJ, Farrington TA. Step aerobics vertical ground reaction force and exercise duration. J Hum Mov Stud 1995;29(1):79-87.         [ Links ]

Scharff-Olson M, Williford HN, Blessing DL, Brown JA. The physiological effects of bench/step exercise. Sports Med 1996;21(3):164-175.         [ Links ]

Franco S, Santos R, Pezarat-Corria P, Veloso A. Influence of bench heigth on muscle participation pattern in step exercise (Abstract). V Annual Congress of the European College of Sport Science. Jyvaskyla: 2000, p.269.         [ Links ]

Aquino MA, Leme LEG, Amatuzzi MM, Greve JMDA, Terreri ASAP, Andrusaitis FR, et al. Isokinetic assessment of knee flexor/extensor muscular strength in elderly women. Rev Hosp Clín Fac Med S Paulo 2002; 57(4):131-134.         [ Links ]

Salem GJ, Wang MY, Young JT, Marion M, Greendale GA. Knee strength and lower- and higher-intensity functional performance in older adults. Med Sci Sports Exerc 2000; 32(10):1679-1684.         [ Links ]

Hartmann A, Knols R, Murer K, de Bruin ED. Reproducibility of an isokinetic strength-testing protocol of the knee and ankle in older adults. Gerontology 2009;55(3):259-268.         [ Links ]

Müller T, Bezerra AF, Barrivieira AC, Zanchetta AM, Gonçalves M. Análise eletromiográfica durante o movimento do step. VI Congresso Brasileiro de Biomecânica. Brasília: 1995, p.238-243.         [ Links ]

Anderson T, Kearney J. Effects of three resistance training programs on muscular strength and absolute and relative endurance. Res Q Exerc Sport 1982; 53(1):1-7.         [ Links ]

Olson MS, Williford HN, Blessing DL, Greathouse R. The cardiovascular and metabolic effects of bench stepping exercise in females. Med Sci Sports Exerc 1991;23(11):1311-1317.         [ Links ]

Schmidtbleicher D. Training for power events. In: Komi PV, editor. Strength and power in sport, London: Blackwell Science; 1992. p.381-395.         [ Links ]

Brown LE, Weir JP. ASEP procedures recommendation I: accurate assessment of muscular strength and power. J Exerc Phys 2001;4(1):1-21.         [ Links ]

Behm DG, Sale DG Velocity specificity of resistance training. Sports Med 1993; 15(6):374-388.         [ Links ]

Aagaard P, Simonsen EB, Trolle M, Bangsbo J, Klausen K. Specificity of training velocity and training load on gains in isokinetic knee joint strength. Acta Physiol Scand 1996;156(2):123-129.         [ Links ]

Rogers MW, Johnson ME, Martinez KM, Mille ML, Hedman LD. Step-training improves the speed of voluntary step initiation in aging. J Gerontol A Biol Sci Med Sci 2003;58A(1):46-51.         [ Links ]

Portney LG, Watkins MP. Foundations of clinical research: applications to practice. Upper Saddle River: Prentice Hall Health; 2000.         [ Links ]

 

 

Endereço para correspondência:
Daniela Coelho Zazá
R. Alsácia, 124/402B, Minas Brasil.
30730-140 – Belo Horizonte,MG. Brasil.
E-mail: zazadaniela@hotmail.com

Recebido em 05/08/2009
Revisado em 17/10/2009
Aprovado em 18/12/2009

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License