Dissertação (mestrado)—Universidade de Brasília, Faculdade de Educação Física, 2009. / Submitted by Allan Wanick Motta (allan_wanick@hotmail.com) on 2010-04-20T13:13:23Z
No. of bitstreams: 1
2009_RodrigoSouzaCeles.pdf: 694611 bytes, checksum: 5339d83ac77b142abb1df4d89dcdcdea (MD5) / Approved for entry into archive by Lucila Saraiva(lucilasaraiva1@gmail.com) on 2010-04-20T18:36:51Z (GMT) No. of bitstreams: 1
2009_RodrigoSouzaCeles.pdf: 694611 bytes, checksum: 5339d83ac77b142abb1df4d89dcdcdea (MD5) / Made available in DSpace on 2010-04-20T18:36:51Z (GMT). No. of bitstreams: 1
2009_RodrigoSouzaCeles.pdf: 694611 bytes, checksum: 5339d83ac77b142abb1df4d89dcdcdea (MD5)
Previous issue date: 2009 / OBJETIVO: Comparar os efeitos de dois diferentes intervalos de recuperação (IRs) entre séries isocinéticas no pico de torque (PT), trabalho total (TT) e índice de fadiga (IF) em homens e mulheres. MÉTODO: 16 homens (26,75 ± 4,73 anos, 79,06 ± 9,38 kg e 175,69 ± 4,66 cm) e17 mulheres (27,18 ± 4,05 anos, 56,84 ± 6,93 kg e 162,56 ± 7,02 cm), recreacionamente treinados em exercícios resistidos há pelo menos 6 meses, realizaram 3 séries de 10 repetições isocinéticas de extensão unilateral de joelho a 60°/s e 180°/s. Os IRs entre as séries foram de 1 e 2min e foram contrabalanceados nos dois dias de teste, separados por um mínimo de 72h. A taxa de trabalho recuperação foi de 1:3 e 1:6 para 60°/s e 1:6 e 1:12 para 180°/s. RESULTADOS: Homens e mulheres tiveram uma redução significante (p<0,05) no PT e TT com 1 e 2min de IR a 60°/s. A 180°/s, ambos os gêneros, demonstraram uma redução significante (p<0,05) do PT e TT apenas com 1min de IR. As mulheres são mais resistentes a fadiga muscular que os homens. As diferenças entre os gêneros no IF foram maiores a 180°/s que a 60°/s. CONCLUSÃO: Os resultados sugerem que durante contrações isocinéticas máximas a 60°/s, homens e mulheres exibem uma grande suscetibilidade a fadiga muscular. Sendo que uma taxa de trabalho recuperação de 1:6 não é suficiente para promover uma completa recuperação muscular no protocolo proposto, em homens e mulheres recreacionalmente treinados. Com o aumento da velocidade, as diferenças entre os gêneros no IF se tornam mais aparentes. _______________________________________________________________________________ ABSTRACT / PURPOSE: To compare the effect of two different rest intervals (RI’s) between sets of isokinetic knee extension exercise on Peak Torque (PT), Total Work (TW), and fatigue index (FI) between young men and women. METHODS: 17 men (26.75 ± 4.73 yrs, 79,06 ± 9,38 kg e 175,69 ± 4,66 cm) and 16 women (27.18 ± 4.05 yrs, 56,84 ± 6,93 kg e 162,56 ± 7,02 cm) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s and 180°/s. The rest intervals between sets were 1 and 2 minutes and were counterbalanced across 2 testing days, separated by a minimum of 72 hours. The work-to-rest ratio was 1:3 and 1:6.for 60°/s and 1:6 and 1:12 for 180°/s. Subjects were recreational resistance trained programs that included resistance exercise within the last 6 months. RESULTS: The results were as follows: Men and women showed a significant (p<0,05) decrees in PT and TW with 1 and 2min RI at 60°/s. At 180°/s, both gender, showed a decline in PT and TW only with 1min RI. Women also appeared to be more fatigue resistant than men at 180°/s. The differences between genders on FI were grater at 180°/s when compared to 60°/s. CONCLUSION: These results suggest that during maximal-effort muscle isokinetic contractions at 60°/s, males and females exhibit a similar susceptibility to muscle fatigue during isokinetic knee extension exercise. Also, it appears that a 1:6 work-to-rest ratio is not sufficient to promote full muscle strength recovery for this specific protocol in recreational resistance trained young men and women. With increased of speed, the difference between genders on FI become more apparent.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.unb.br:10482/4296 |
| Date | January 2009 |
| Creators | Celes, Rodrigo Souza |
| Contributors | Marques, Martim Francisco Bottaro |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UnB, instname:Universidade de Brasília, instacron:UNB |
| Rights | info:eu-repo/semantics/openAccess |
Page generated in 0.0021 seconds