Crivaldo Gomes Cardoso Júnior

Efeito do treinamento físico na pressão arterial de adolescentes com obesidade

Objective: To systematically review the results of studies that analyzed the effects of physical training on the blood pressure of obese adolescents. Data sources: A systematic review of randomized clinical trials was performed and examined the effect of physical training on the blood pressure of obese adolescents, published in journals indexed at PubMed/Medline, Lilacs, SciELO, and ISI Web of Knowledge SM databases. Studies that evaluated adolescents published until 2010 and that had a Control Group were included. Data synthesis: Eight studies met the inclusion criteria. Two of them used strength exercises combined with aerobics, while six used only aerobics. Five studies used complementary intervention, especially nutritional. Four studies found decreased systolic blood pressure in the Training Group compared to Controls, together with the reduction in body mass. All studies that found a reduction in systolic blood pressure used aerobic exercises from 12 to 24 weeks three to six times per week, lasting 50 to 90 minutes, and with intensity between 55 and 75% at the maximum heart rate. Conclusions: The effect of physical training on the systolic blood pressure of obese adolescents is controversial. However, the reduction in systolic blood pressure seems to occur with aerobic training programs, that also reduce body mass.OBJETIVO: Descrever, por meio de uma revisao sistematica, os efeitos do treinamento fisico sobre a pressao arterial em adolescentes com obesidade. FONTES DE DADOS: Recorreu-se a revisao sistematica de ensaios clinicos randomizados que analisaram o efeito do treinamento fisico sobre a pressao arterial de adolescentes obesos, publicados em periodicos indexados nas bases de dados PubMed/Medline, Lilacs, SciELO e ISI Web of KnowledgeSM. Foram incluidos os estudos que avaliaram adolescentes publicados ate 2010, e que possuiam Grupo Controle. SINTESE DOS DADOS: Oito estudos atenderam aos criterios de inclusao. Dois deles utilizaram exercicios de forca combinados com aerobios, enquanto seis empregaram apenas os aerobios. Cinco estudos utilizaram intervencoes complementares, sendo a nutricional a mais frequente. Quatro estudos observaram reducao da pressao arterial sistolica no Grupo Exercicio comparado ao Controle. Nesses quatro estudos, alem da reducao da pressao arterial, notou-se diminuicao da massa corporea. Todos aqueles que verificaram reducao da pressao arterial utilizaram 12 a 24 semanas de exercicios aerobios, tres a seis sessoes semanais, com duracao de 50 a 90 minutos e intensidade entre 55 e 75% da frequencia cardiaca maxima. CONCLUSOES: O efeito do treinamento fisico na pressao arterial de adolescentes obesos e controverso. A reducao da pressao arterial parece ocorrer com programas de treinamento aerobios que promovam tambem a reducao da massa corporea.

Effect of rest interval on cardiovascular responses after resistance exercise

OBJECTIVE: To analyze the acute effect of rest interval length on cardiovascular response after resistance exercise. METHODS: Twenty young eutrophic men (23.9 ± 0.7 years;23.8 ± 0.5 kg/m²) performed two experimental sessions in a random order: resistance exercise with a 30-second (I30) and with a 90-second (I90) rest interval between sets. Both sessions included five exercises with 50% of the one-repetition maximum. Before and 24 hours after the experimental sessions, systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), and rate-pressure product (RPP) were obtained. RESULTS: The SBP, DBP and RPP responses were similar between the I30 and I90 sessions (p>0.05), while the HR after I30 was significantly higher than after I90 (p 0.05). CONCLUSION: Different recovery intervals did not promote post-exercise hypotension, however, a short rest interval increases heart rate for 1 hour after exercise. In addition, within 24 hours of the responses were similar between groups.

Effects of walking and strength training on walking capacity in individuals with claudication: meta-analysis

CONTEXT: Over the past few years, several clinical trials have been performed to analyze the effects of exercise training on walking ability in patients with intermittent claudication (IC). However, it remains unclear which type of physical exercise provides the maximum benefits in terms of walking ability. OBJECTIVE: To analyze, by means of a meta-analysis, the effects of walking and strength training on the walking capacity in patients with IC. METHODS: Papers analyzing the effects of walking and strength training programs in patients with IC were browsed on the Medline, Lilacs, and Cochrane databases. Randomized clinical trials scoring >4 on the Physiotherapy Evidence Database (PEDro) scale and assessing claudication distance (CD) and total walking distance (TWD) were included in the review. RESULTS: Walking and strength training yielded increases in CD and TWD (P < 0.05). However, walking training yielded greater increases than strength training (P = 0.02). CONCLUSION: Walking and strength training improve walking capacity in patients with IC. However, greater improvements in TWD are obtained with walking training.

Efecto del entrenamiento físico en la presión arterial de adolescentes con obesidad

Objective: To systematically review the results of studies that analyzed the effects of physical training on the blood pressure of obese adolescents. Data sources: A systematic review of randomized clinical trials was performed and examined the effect of physical training on the blood pressure of obese adolescents, published in journals indexed at PubMed/Medline, Lilacs, SciELO, and ISI Web of Knowledge SM databases. Studies that evaluated adolescents published until 2010 and that had a Control Group were included. Data synthesis: Eight studies met the inclusion criteria. Two of them used strength exercises combined with aerobics, while six used only aerobics. Five studies used complementary intervention, especially nutritional. Four studies found decreased systolic blood pressure in the Training Group compared to Controls, together with the reduction in body mass. All studies that found a reduction in systolic blood pressure used aerobic exercises from 12 to 24 weeks three to six times per week, lasting 50 to 90 minutes, and with intensity between 55 and 75% at the maximum heart rate. Conclusions: The effect of physical training on the systolic blood pressure of obese adolescents is controversial. However, the reduction in systolic blood pressure seems to occur with aerobic training programs, that also reduce body mass.OBJETIVO: Descrever, por meio de uma revisao sistematica, os efeitos do treinamento fisico sobre a pressao arterial em adolescentes com obesidade. FONTES DE DADOS: Recorreu-se a revisao sistematica de ensaios clinicos randomizados que analisaram o efeito do treinamento fisico sobre a pressao arterial de adolescentes obesos, publicados em periodicos indexados nas bases de dados PubMed/Medline, Lilacs, SciELO e ISI Web of KnowledgeSM. Foram incluidos os estudos que avaliaram adolescentes publicados ate 2010, e que possuiam Grupo Controle. SINTESE DOS DADOS: Oito estudos atenderam aos criterios de inclusao. Dois deles utilizaram exercicios de forca combinados com aerobios, enquanto seis empregaram apenas os aerobios. Cinco estudos utilizaram intervencoes complementares, sendo a nutricional a mais frequente. Quatro estudos observaram reducao da pressao arterial sistolica no Grupo Exercicio comparado ao Controle. Nesses quatro estudos, alem da reducao da pressao arterial, notou-se diminuicao da massa corporea. Todos aqueles que verificaram reducao da pressao arterial utilizaram 12 a 24 semanas de exercicios aerobios, tres a seis sessoes semanais, com duracao de 50 a 90 minutos e intensidade entre 55 e 75% da frequencia cardiaca maxima. CONCLUSOES: O efeito do treinamento fisico na pressao arterial de adolescentes obesos e controverso. A reducao da pressao arterial parece ocorrer com programas de treinamento aerobios que promovam tambem a reducao da massa corporea.

Effect of physical training on the blood pressure of adolescents with obesity

Objective: To systematically review the results of studies that analyzed the effects of physical training on the blood pressure of obese adolescents. Data sources: A systematic review of randomized clinical trials was performed and examined the effect of physical training on the blood pressure of obese adolescents, published in journals indexed at PubMed/Medline, Lilacs, SciELO, and ISI Web of Knowledge SM databases. Studies that evaluated adolescents published until 2010 and that had a Control Group were included. Data synthesis: Eight studies met the inclusion criteria. Two of them used strength exercises combined with aerobics, while six used only aerobics. Five studies used complementary intervention, especially nutritional. Four studies found decreased systolic blood pressure in the Training Group compared to Controls, together with the reduction in body mass. All studies that found a reduction in systolic blood pressure used aerobic exercises from 12 to 24 weeks three to six times per week, lasting 50 to 90 minutes, and with intensity between 55 and 75% at the maximum heart rate. Conclusions: The effect of physical training on the systolic blood pressure of obese adolescents is controversial. However, the reduction in systolic blood pressure seems to occur with aerobic training programs, that also reduce body mass.OBJETIVO: Descrever, por meio de uma revisao sistematica, os efeitos do treinamento fisico sobre a pressao arterial em adolescentes com obesidade. FONTES DE DADOS: Recorreu-se a revisao sistematica de ensaios clinicos randomizados que analisaram o efeito do treinamento fisico sobre a pressao arterial de adolescentes obesos, publicados em periodicos indexados nas bases de dados PubMed/Medline, Lilacs, SciELO e ISI Web of KnowledgeSM. Foram incluidos os estudos que avaliaram adolescentes publicados ate 2010, e que possuiam Grupo Controle. SINTESE DOS DADOS: Oito estudos atenderam aos criterios de inclusao. Dois deles utilizaram exercicios de forca combinados com aerobios, enquanto seis empregaram apenas os aerobios. Cinco estudos utilizaram intervencoes complementares, sendo a nutricional a mais frequente. Quatro estudos observaram reducao da pressao arterial sistolica no Grupo Exercicio comparado ao Controle. Nesses quatro estudos, alem da reducao da pressao arterial, notou-se diminuicao da massa corporea. Todos aqueles que verificaram reducao da pressao arterial utilizaram 12 a 24 semanas de exercicios aerobios, tres a seis sessoes semanais, com duracao de 50 a 90 minutos e intensidade entre 55 e 75% da frequencia cardiaca maxima. CONCLUSOES: O efeito do treinamento fisico na pressao arterial de adolescentes obesos e controverso. A reducao da pressao arterial parece ocorrer com programas de treinamento aerobios que promovam tambem a reducao da massa corporea.