Exercise training improves left ventricular isovolumic relaxation

Article Abstract:

It appears that the extent and rate of left ventricular (LV) isovolumic relaxation is improved by exercise training. The relationship between aerobic fitness and isovolumic LV relaxation was studied using human and rat models in two series of experiments. Two groups of college men, numbering 18, with variable peak run times were studied. Sedentary and exercise-trained rats were also studied. Morphological assessment was carried out afterward in rats.

Statistical Data Included, Diastole (Cardiac cycle), Rats

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Testosterone-propionate impairs the response of the cardiac capillary bed to exercise

Article Abstract:

Testosterone-propionate has been found to impair response of the cardiac capillary bed to exercise. A study was carried out to quantify the short term, 3-weeks, and long-term, 6-week, effects of combined stimuli of testosterone-propionate and muscular exercise on structural response of the cardiac capillary bed and myocyte hypertrophy. Previously the response of cardiomyocytes to anabolic steroids and exercise at the same time has not been measured.

Germany, Usage, Heart, Mice, Mice (Rodents), Blood vessels, Testosterone, Neovascularization, Hypertrophy, Muscle cells, Anabolic steroids, Microcirculation, Capillaries

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Bicarbonate reduces serum prolactin increase induced by exercise to exhaustion

Article Abstract:

A study investigates whether buffering by infusion of bicarbonate reduces post-exercise serum prolactin (PRL) concentration. The results show buffering of metabolic acidosis reduces the increase of serum PRL concentration induced by exercise to exhaustion in male recreational athletes.

Health aspects, Prolactin, Acidosis, Strengthening exercises

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