Now showing items 1-10 of 26
Long-term nitric oxide inhibition and chronotropic responses in rat isolated right atria
(Hypertension, 1999-10-01) [Artigo]
The long-term administration of nitric oxide synthesis inhibitors induces arterial hypertension accompanied by left ventricular hypertrophy and myocardial ischemic lesions. Because the enhancement of sympathetic drive has ...
EFFECT OF CAFFEINE ON THE METABOLISM OF RATS EXERCISING BY SWIMMING
(Brazilian Journal of Medical and Biological Research, 1994-10-01) [Artigo]
Several studies have demonstrated that caffeine improves endurance exercise performance but the mechanisms are not fully understood. Possibilities include increased free fatty acid (FFA) oxidation with consequent sparing ...
EFFECT OF MATERNAL EXERCISE DURING PREGNANCY ON MATERNAL BODY COMPONENTS AND FETAL GROWTH IN YOUNG AND ADULT-RATS
(Brazilian Journal of Medical and Biological Research, 1990-01-01) [Artigo]
Effects of caffeine on time to exhaustion in exercise performed below and above the anaerobic threshold
(Brazilian Journal of Medical and Biological Research, 1998-04-01) [Artigo]
Controversy still exists concerning the potential ergogenic benefit of caffeine (CAF) for exercise performance. The purpose of this study was to compare the effects of CAF ingestion on endurance performance during exercise ...
Electromyographic evaluation of the rectus femoris muscle during exercises performed on the leg press
(Electromyography and Clinical Neurophysiology, 1998-06-01) [Artigo]
The rectus femoris was analysed in 10 volunteers during knee flexion and extension with the feet in normal, plantar flexion and dorsal flexion positions. Hewlett-Packard surface electrodes, an electromyographic signal ...
Electromyographic behaviour of the gastrocnemius muscle during knee extension and flexion performed on the leg press
(Electromyography and Clinical Neurophysiology, 1999-09-01) [Artigo]
The gastrocnemius was analysed in 10 male volunteers during knee flexion and extension with the foot in normal, plantar flexion and dorsal flexion positions. Hewlett-Packard surface electrodes, an electromyographic signal ...
A Prática Pedagógica em Educação Física: uma análise crítica*
(Educação: Teoria e Prática, 1998) [Artigo]
Este estudo de caráter qualitativo teve por objetivo refletir sobre a formação de professores com habilitação específica para o magistério, nos parâmetros relacionados à Educação Física. A pesquisa foi desenvolvida em duas ...
Traços de uma Cultura no Ensino Formal
(Educação: Teoria e Prática, 1994) [Artigo]
O trabalho aborda uma experiência com educação escolar em uma comunidade de negros, que vive semi-isolada no sudeste do Estado do Tocantins, na região norte do Brasil, onde o sitema matriarcal representa apenas uma das ...
Effect of acute footshock stress on the responsiveness of the isolated rat tail artery to phenylephrine and epinephrine
(Brazilian Journal of Medical and Biological Research, 1992-01-01) [Artigo]
Blood glucose responses in humans mirror lactate responses for individual anaerobic threshold and for lactate minimum in track tests
(European Journal of Applied Physiology and Occupational Physiology, 1999-06-01) [Artigo]
The equilibrium point between blood lactate production and removal (La-min(-)) and the individual anaerobic threshold (IAT) protocols have been used to evaluate exercise. During progressive exercise, blood lactate [La-](b), ...