Musch T I, Haidet G C, Ordway G A, Longhurst J C, Mitchell J H
J Appl Physiol (1985). 1987 Apr;62(4):1724-32. doi: 10.1152/jappl.1987.62.4.1724.
The effect of training on the regional blood flow response to maximal exercise was investigated in the foxhound. Training consisted of 8-12 wk of treadmill running at 80% of maximal heart rate 1 h/day for 5 days/wk and resulted in a 31% increase in maximal O2 consumption, a 28% increase in maximal cardiac output, and a 23% decrease in systemic vascular resistance during maximal exercise. Blood flow to the heart, diaphragm, brain, skin, and 9 of 10 muscles investigated was similar during maximal exercise pre- and posttraining; however, blood flow to the gastrocnemius muscle was greater posttraining than it was pretraining. Blood flow to the stomach, small intestine, and pancreas decreased during maximal exercise pre- and posttraining; however, blood flow to the large intestine, spleen, liver, adrenal glands, and kidneys decreased during maximal exercise only posttraining. In addition, a larger decrease in blood flow to the stomach during maximal exercise was found posttraining compared with pretraining. These results demonstrate that blood flow to skeletal muscle, the kidneys, and the splanchnic region of the foxhound during maximal exercise can be significantly altered by dynamic exercise training.
研究了训练对猎狐犬最大运动时局部血流反应的影响。训练包括以最大心率的80%在跑步机上跑步8 - 12周，每天1小时，每周5天，结果最大耗氧量增加31%，最大心输出量增加28%，最大运动时全身血管阻力降低23%。训练前后最大运动时心脏、膈肌、大脑、皮肤以及所研究的10块肌肉中的9块的血流相似；然而，训练后腓肠肌的血流比训练前更多。训练前后最大运动时胃、小肠和胰腺的血流减少；然而，仅在训练后最大运动时大肠、脾脏、肝脏、肾上腺和肾脏的血流减少。此外，与训练前相比，训练后最大运动时胃的血流减少幅度更大。这些结果表明，动态运动训练可显著改变猎狐犬在最大运动时骨骼肌、肾脏和内脏区域的血流。
