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Previous issue date: 2013-02-19 / The aim of the present study was to evaluate the acute and chronic effects of resistance training (RT) on cardiovascular risk factors in women with overweight/obesity and/or metabolic syndrome. This study was divided in four steps: (1) systematic review to elucidate the effectiveness of RT to prevent and treatment of cardiovascular risk factors in patients with metabolic syndrome (MetS); (2) to evaluate the clinical and ambulatory behavior of blood pressure (BP) after a acute RT session completed between 08:00-09:00 p.m. and of a control session in women with overweight/obesity; (3) to evaluate the clinical and ambulatory behavior of BP, and heart rate variability (HRV) after an acute RT session completed between 08:00-09:00 p.m. and a control session in women with Met and (4) to evaluate the effects of a eightweek RT without dietetic control on the risk factors of MetS in women with overweight/obesity. Methods: Sedentary women (18-49 years) with and without risk factors for MetS participated in this study. Volunteers were submitted to a acute RT session with six exercises (machine leg press, leg extension, leg curl, machine chest, frontal lat pull-down and machine shoulder press) with 3 sets of 10 repetitions and an intensity of 60% of one repetition maximum (1RM). After the acute RT and control
session (35 minutes in the seated position) systolic (SBP) (PAS), diastolic (DBP) and
mean blood pressure (MBP) were clinically monitored during 60 minutes and after this,
the ambulatory monitor of BP (MAPA) was inserted to the non dominant arm to the analysis of SBP, DBP and MBP during 24h. The HRV was monitored after the RT
session during 60 minutes post-exercise. The chronic study was performed during eight
weeks (3x) of RT for the whole body with a intensity of 8-12 repetitions maximum and
1 minute rest interval between exercises and sets. Before and after the eight weeks
anthropometric, biochemical, BP and muscle strength evaluations were completed.
Results: Collectively, these data demonstrated that an acute RT session is capable of
decreasing clinical and ambulatory BP both in women with overweight/obesity and MetS, with similar autonomic response post exercise in with and without MetS. Moreover, the eight-week RT without dietetic control and aerobic exercise presented a low effectiveness in modifying blood glucose, BP, waist circumference, triglycerides and HDL. However, short-term RT was effective in increasing absolute and relative muscle strength and muscle volume of the quadriceps. Conclusions: An acute RT session is capable if decreasing clinical and ambulatory BP in women with overweight /obesity and MetS. However, chronic RT without dietetic control did not decrease cardiovascular risk factor in women with MetS. / O objetivo do presente estudo foi avaliar os efeitos agudos e cr??nicos do treinamento de for??a (TF) sobre os fatores de risco cardiovascular em mulheres com sobrepeso/obesidade e/ou s??ndrome metab??lica. Este estudo foi dividido em quatro etapas: (1) revis??o sistem??tica para elucidar a efetividade do TF para a preven????o e tratamento dos fatores de risco cardiovascular em pacientes com s??ndrome metab??lica
(SM); (2) avaliar o comportamento cl??nico e ambulatorial da press??o arterial (PA) ap??s uma sess??o de TF aguda realizado entre 20:00-21:00 e de uma sess??o controle em mulheres portadoras de sobrepeso/obesidade; (3) avaliar o comportamento cl??nico da PA e da variabilidade da frequ??ncia card??aca (VFC) e ambulatorial da PA ap??s uma sess??o de TF aguda realizado entre 20:00-21:00 e de uma sess??o controle em mulheres portadoras de SM e (4) avaliar os efeitos do TF realizado durante oito semanas sem
controle diet??tico sobre os fatores de risco da SM em mulheres com sobrepeso/obesidade. M??todos: Participaram do presente estudo mulheres sedent??rias (18-49 anos) com e sem fatores de risco para SM. As volunt??rias submetidas ao TF agudo realizaram seis exerc??cios (leg press na m??quina, cadeira extensora, cadeira flexora, supino vertical na m??quina, puxada frontal e desenvolvimento na m??quina) com
3 s??ries de 10 repeti????es e intensidade de 60% de uma repeti????o m??xima (1RM). Ap??s as sess??es aguda do TF e controle (35 minutos na posi????o sentada) foram monitoradas clinicamente a press??o arterial sist??lica (PAS), diast??lica (PAD) e m??dia (PAM), durante 60 minutos e ap??s foi inserido no bra??o n??o dominante o monitor ambulatorial da press??o arterial (MAPA) para an??lise da PAS, PAD e PAM durante 24h. A VFC foi monitorada ap??s a sess??o de TF durante 60 minutos p??s-exerc??cio. O estudo cr??nico foi
realizado durante oito semanas (3x) de TF para o corpo todo com intensidade de 8-12 repeti????es m??ximas e 1 minuto de intervalo de recupera????o entre os exerc??cios e s??ries. Antes e ap??s as oito semanas foram realizadas avalia????es antropom??tricas, bioqu??micas, press??ricas e de for??a muscular. Resultados: Coletivamente, estes dados demonstram que uma sess??o aguda do TF ?? capaz de diminuir a PA cl??nica e ambulatorial tanto em mulheres com sobrepeso/obesidade como em mulheres com SM, com similar resposta auton??mica p??s exerc??cio em mulheres com e sem SM. Al??m disso, o TF realizado
durante oito semanas sem o controle diet??tico e sem a realiza????o de exerc??cios aer??bios foi pouco efetivo em alterar a glicose sangu??nea, PA, circunfer??ncia da cintura, os triglicer??deos e o HDL. No entanto, o TF realizado em curto prazo foi efetivo em aumentar a for??a muscular absoluta e relativa e o volume muscular do quadr??ceps. Conclus??es: Uma sess??o aguda do TF ?? capaz de diminuir a PA cl??nica e ambulatorial
em mulheres com sobrepeso/obesidade e SM. No entanto, o TF cr??nico sem controle diet??tico n??o reduz os fatores de risco cardiovascular em mulheres com SM.
| Identifer | oai:union.ndltd.org:IBICT/oai:bdtd.ucb.br:tede/2009 |
| Date | 19 February 2013 |
| Creators | Tibana, Ramires Alsamir |
| Contributors | Prestes, Jonato |
| Publisher | Universidade Cat??lica de Bras??lia, Programa Strictu Sensu em Educa????o F??sica, UCB, Brasil, Escola de Sa??de e Medicina |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UCB, instname:Universidade Católica de Brasília, instacron:UCB |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 6095716513072507778, 500, 500, 600, 3870802503144686128, 5178284805913411594 |
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