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1.
Rev. andal. med. deporte ; 12(2): 93-98, jun. 2019. ilus, tab
Artigo em Português | LILACS-Express | ID: ibc-ET1-3445

RESUMO

Objetivo: Comparar respostas hemodinâmicas e autonômicas cardíacas após sessões agudas de exercício resistido dinâmico e isométrico. Método: Após familiarização às sessões experimentais e teste de uma repetição máxima, 12 homens (idade: 49.0±6.4 anos) sem o uso de medicamentos e experiência em exercício resistido foram randomizados de forma cruzada à duas sessões experimentais de exercício resistido dinâmico e isométrico compostos por um circuito de seis exercícios alternados por segmento corporal e à uma intensidade de 60% de uma repetição máxima. Aos momentos de repouso e recuperação foram mensuradas a pressão arterial sistólica e diastólica e registrado os intervalos R-R com posterior cálculo de índices da variabilidade da frequência cardíaca. Resultados: Não foram observadas diferenças estatisticamente significantes nas respostas pressóricas entre as sessões experimentais. O duplo produto se recuperou para valores basais aos 25min da recuperação em ambas as sessões. A frequência cardíaca permaneceu mais elevada durante momentos da recuperação na sessão dinâmico, ao passo que a sessão isométrica recuperou menos batimentos cardíacos para essa mesma variável. Adicionalmente, o balanço simpato-vagal permaneceu elevado e indicadores parassimpáticos diminuídos, em relação ao repouso, após sessão isométrica. Conclusão: Não ocorreram diferenças nas respostas hemodinâmicas entre as sessões de exercício resistido. Por outro lado, demonstrou-se diferentes recuperações para a frequência cardíaca e variáveis autonômicas após as sessões experimentais


Objetivo: Comparar respuestas hemodinámicas y autonómicas cardíacas después de sesiones agudas de ejercicio resistido dinámico y isométrico. Método: Después de familiarización en las sesiones experimentales y prueba de una repetición máxima, 12 hombres (edad: 49.0±6.4 años) sin el uso de medicamentos y experiencia en ejercicio resistido fueron randomizados de forma cruzada a dos sesiones experimentales de ejercicio resistido dinámico y isométricos compuestos por un circuito de seis ejercicios alternados por segmento corporal con una intensidad del 60% de una repetición máxima. Durante los momentos de reposo y recuperación se midieron la presión arterial sistólica y diastólica y se registraron los intervalos R-R con posterior cálculo de índices de la variabilidad de la frecuencia cardíaca. Resultados: No se observaron diferencias estadísticamente significativas en las respuestas de presión arterial entre las sesiones experimentales. El doble producto se recuperó a valores basales a los 25min de la recuperación en ambas sesiones. La frecuencia cardiaca permaneció más elevada durante momentos de recuperación en la sesión dinámica, mientras que la sesión isométrica recuperó menos latidos cardíacos para esa misma variable. Todavía, el balance simpático-vagal permaneció elevado e indicadores parasimpáticos disminuidos, en relación al reposo, después de la sesión isométrica. Conclusión: No ocurrieron diferencias en las respuestas hemodinámicas entre las sesiones de ejercicio. Sin embargo, se demostró diferentes recuperaciones entre las variables autonómicas después de las sesiones experimentales


Objective: To compare hemodynamic and cardiac autonomic responses after acute sessions of dynamic and isometric resistance exercise. Methods: After familiarization with the experimental sessions and maximal repetition test, 12 men (age: 49.0±6.4 years) without medication and experience in resistance exercise were cross-randomized in two experimental sessions of dynamic and isometric resistance exercise composed by a circuit with six alternating exercises per body segment and at intensities of 60% of a one maximum repetition. At rest and recovery moments, systolic and diastolic blood pressure were measured and R-R intervals were recorded with subsequent calculation of heart rate variability indexes. Results: No statistically significant differences were observed in blood pressure responses between experimental sessions. The rate pressure product recovered to baseline at 25min of recovery in both sessions. The heart rate remained higher during moments of recovery in the dynamic session, while the isometric session recovered fewer heart beats for that same variable. In addition, the sympatho-vagal balance remained high and the parasympathetic indicators decreased in relation to rest after the isometric session. Conclusion: There were no differences in hemodynamic response between resistance exercise sessions. Otherwise, different recoveries between the autonomic variables after the experimental sessions were demonstrated

2.
J Strength Cond Res ; 2018 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-29985228

RESUMO

Melo, KCB, Araújo, FdS, Cordeiro Júnior, CCM, de Andrade, KTP, and Moreira, SR. Pilates method training: Functional and blood glucose responses of older women with type 2 diabetes. J Strength Cond Res XX(X): 000-000, 2018-The objective of the study was to investigate the effects of 12 weeks (wk) of Pilates method on the functional capacity (FC) and glycemic control of older women with type 2 diabetes (T2D). Twenty-two women with T2D were randomized into the control (CONTROL: 67.5 ± 6.3 years; 154.7 ± 6.1 cm; 73.5 ± 6.1 kg) and Pilates groups (PILATES: 65.5 ± 5.5 years; 155.0 ± 4.5 cm; 66.2 ± 5.4 kg), which held sessions of 60 minutes 3× per week during 12 weeks. Blood glucose was measured before and after sessions in PILATES, as well as in moments of pre, rest, 4 weeks, 8 weeks, and 12 weeks of the PILATES and CONTROL interventions. The glycated hemoglobin (HbA1c) before and after 12 weeks of intervention was evaluated. The general index of FC (GIFC) was obtained through battery of tests for the older. Analysis of variance detected differences in GIFC for PILATES vs. CONTROL, respectively, in the 4 weeks (30.3 ± 4.6 seconds vs. 34.8 ± 4.9 seconds; p < 0.05), 8 weeks (29.2 ± 4.5 seconds vs. 34.6 ± 4.9 seconds; p < 0.05), and 12 weeks (27.2 ± 4.0 seconds vs. 35.3 ± 4.6 seconds; p < 0.05). PILATES presented difference in postprandial glycemia pre vs. 4 weeks and 12 weeks (246.1 ± 58.5 mg·dl vs. 219.9 ± 59.9 mg·dl and 207.6 ± 49.1 mg·dl, respectively; p < 0.05), as well as in the HbA1c pre vs. 12 weeks (7.8 ± 1.0% vs. 6.7 ± 0.6%, respectively; p < 0.05). Differences in postprandial glycemia (p < 0.05) were found in the PILATES before vs. after session, respectively, of the 1st-12th (217.1 ± 49.1 mg·dl vs. 157.9 ± 55.7 mg·dl), 13th-24th (204.5 ± 44.7 mg·dl vs. 146.3 ± 44.5 mg·dl), and 25th-36th (214.3 ± 40.4 mg·dl vs. 152.7 ± 52.0 mg·dl). Correlation between postprandial glycemia and GIFC after 12 weeks was detected (r = 0.37; p = 0.04). It is concluded that 12 weeks of PILATES method induce improvement and relationship in the FC and glycemic control in older women with T2D.

3.
Conscientiae saúde (Impr.) ; 17(2): 211-218, jun. 2018.
Artigo em Português | LILACS-Express | ID: biblio-916259

RESUMO

Introdução: Os telômeros estão localizados nas extremidades dos cromossomos e constituem-se de sequências do DNA e proteínas associadas. O exercício físico parece ter relação com um maior comprimento de telômeros, porém, pouco se sabe sobre o impacto deste na dinâmica telomérica de pessoas com disfunções crônico-degenerativas. Objetivo: Revisar sistematicamente a literatura a respeito do efeito do exercício no comprimento dos telômeros em pessoas com disfunções crônico-degenerativas. Métodos: Foram realizadas buscas por dois investigadores independentes nas bases de dados Pubmed, Scopus, Lilacs e Cochrane Controlled Trials Database, analisando publicações nos idiomas inglês e português. Resultados: Foram encontrados 845 estudos, onde destes, quatro atenderam aos critérios de elegibilidade e seguiram para síntese. Conclusão: Embora o encurtamento dos telômeros esteja relacionado ao estilo de vida, herança genética e doenças do envelhecimento, ainda não está claro se o exercício físico pode atenuar tal processo de encurtamento de forma significativa em indivíduos com disfunções crônico-degenerativas, como excesso de peso e diabetes.


Introduction: Telomeres are located at the ends of chromosomes and consist of DNA sequences and associated proteins. Physical exercise seems to be related to a greater telomeres length, but little is known about its impact on the telomere dynamics of people with chronic degenerative dysfunctions. Purpose: Systematically review the literature on the effect of exercise on the telomeres length in people with chronic degenerative disorders. Methods: Searches were carried out by two independent researchers in the databases Pubmed, Scopus, Lilacs e Cochrane Controlled Trials Database, analyzing publications in the English and Portuguese language. Results: A total of 845 studies were found, of which four met the eligibility criteria and followed up for synthesis. Conclusion: Although shortening of telomeres is related to lifestyle, genetic inheritance, and diseases of aging, still unclear physical exercise can attenuate such a shortening process significantly in individuals with chronic-degenerative dysfunctions such as overweight and diabetes.

4.
Motriz (Online) ; 24(2): e101803, 2018. tab, graf
Artigo em Inglês | LILACS-Express | ID: biblio-955138

RESUMO

Abstract AIMS The present study aimed to investigate the effects of whole body isometric resistance training (IRT) on blood pressure (BP), strength and aerobic fitness. We also analyzed whether the effects of whole body isometric training compares to whole body dynamic resistance training (DRT). METHODS Twenty-nine pre-hypertensive sedentary males, aged between 40 and 60 years were divided into three groups: IRT (n = 10), DRT (n = 9), and Control (n = 10). Both programs involved whole body resistance training, and occurred for 12 weeks, three times/week, at an intensity of 60% of a dynamic one repetition maximum test (1RM). Before and after 12 weeks, 24 hours blood pressure monitoring, 1RM strength and aerobic fitness were assessed. RESULTS IRT reduced diastolic BP values during a 24-hour period and daytime. There was also a decrease in mean BP values during daytime (P<0.05). No interaction between time and group in systolic BP, diastolic BP, mean BP, heart rate and arterial stiffness index were observed (P>0.05). IRT increased strength and aerobic fitness when compared to Control group. However, these changes were lower than DRT regarding strength (DRT: ∆ = 43.1±10.6% vs. IRT: ∆ = 24.1±7.1% vs. CON: Δ = 4.2±11.5%; P<0.05) and aerobic fitness (DRT: ∆ = 22.9±10.7% vs. IRT: ∆ = 12.9±6.1% vs. CON: Δ = -2.1±7.4%; P<0.01). CONCLUSION Whole body IRT reduced diastolic BP and mean BP, however, the decrease was not different for the DRT group. IRT also increased strength and aerobic fitness, nevertheless, these changes were lower than after DRT.

5.
Saude e pesqui. (Impr.) ; 9(1): 137-142, jan.-abr. 2016.
Artigo em Português | LILACS-Express | ID: biblio-832003

RESUMO

A composição corporal e a pressão arterial (PA) podem sofrer influências de padrões do estilo de vida (EV). Desse modo, o objetivo deste trabalho foi investigar a influência do EV em variáveis antropométricas e PA em adultos jovens frequentadores de parque de lazer. Cento e quatro indivíduos de ambos os sexos (31±8 anos) responderam o Questionário "Estilo de Vida Fantástico" e foram submetidos a mensurações de PA, circunferência da cintura (CC), massa corporal e estatura para cálculo do índice de massa corporal (IMC). A amostra foi dividida por sexo e estratificada em "Baixo EV" (BEV; 0-69 pontos) e "Alto EV" (AEV; 70-100 pontos). Diferenças foram encontradas quando comparados os estratos BEV vs. AEV para massa corporal (Geral: 74±16 vs. 67±13 kg; Masc: 84±17 vs. 74±13 kg; Fem: 66±10 vs. 61±8 kg; p <0 ,05); IMC (Geral: 27±4 vs. 24±3 kg.m2(-1); Masc: 27±4 vs. 25±4 kg.m2(-1); Fem: 26±4 vs. 24±3 kg.m2(-1); p < 0,05); CC (Geral: 84±1 vs. 79±10 cm; Masc: 91±14 vs. 83±11 cm; p < 0,05); e PA diastólica (Geral: 79±8 vs.73±13 mmHg; Masc: 79±8 vs.71±15 mmHg; Fem: 80±8 vs. 73±12 mmHg; p < 0.05). Foi possível concluir que frequentadores de parque de lazer com BEV apresentam variáveis antropométricas e PA diastólica aumentadas em relação aos que apresentam AEV.


Body composition and arterial blood pressure (AP) are affected by lifestyle (LS). Current research investigates the influence of LS on the anthropometric variables and AP in young adults who frequent a recreation park. One hundred and four subjects of both genders, 31±8 years old, answered the questionnaire "Fantastic Lifestyle" and their blood pressure (AP), waist circumference (HC), body mass and height for Body Mass Index (BMI) were taken. The sample was divided by gender and stratified in "Low LS" (LLS; 0-69 scores) and "High LS" (HLS; 70-100 scores). Differences occurred when LLS vs HLS were compared for body mass (General: 74±16 vs. 67±13 kg; Male: 84±17 vs. 74±13 kg; Female: 66±10 vs. 61±8 kg; p <0.05); BMI (General: 27±4 vs. 24±3 kg.m2(-1); Male: 27±4 vs. 25±4 kg.m2(-1); Female: 26±4 vs. 24±3 kg.m2(-1); p < 0.05); CC (General: 84±1 vs. 79±10 cm; Male: 91±14 vs. 83±11 cm; p < 0.05); diastolic AP (General: 79±8 vs.73±13 mmHg; Male: 79±8 vs.71±15 mmHg; Female: 80±8 vs. 73±12 mmHg; p < 0.05). Results show that people from the recreation park with LLS had altered anthropometric variables and diastolic AP when compared with those of HLS.

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