Faster femoral artery blood velocity kinetics at the onset of exercise following short-term training.
Faster femoral artery blood velocity kinetics at the onset of exercise following short-term training.
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短期训练后运动开始时股动脉血流速度动力学更快。
DOI：
10.1016/s0008-6363(95)00199-9
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发表时间：
1996
影响因子：
10.8
通讯作者：
R. Hughson
中科院分区：
文献类型：
--
作者：
J. Shoemaker;Stuart M Phillips;H. Green;R. Hughson
目的：对12名健康的年轻男性进行耐力训练（ET） 2小时/天，在一个周期内达到65% V / o峰值，持续10天，以及11名非训练对照(C)受试者进行耐力训练适应包括运动开始时血流量更快增加的假设进行了验证。方法：采用脉冲多普勒法测定股动脉平均血流速度（MBV）变化。心输出量（CO）和平均动脉压（MAP）的逐拍变化分别通过阻抗心动图和Finapres指套测量。在休息和5分钟的动态膝关节伸展运动中测量MBV、MAP和CO。两条腿交替工作，2秒提升和降低重量（15%最大自愿收缩），然后休息2秒，而另一条腿提升和降低重量。结果：ET组在训练10 d后达到63% (T63%) MBV近似指数增长的时间（8.6±1.2 s, mean±s.e.）显著快于第0天反应（14.2±2.1 s，P< 0.05）。ET治疗10天后的t63%股动脉血管传导率（VCfa）（9.4±0.9 s）比第0天（16.0±2.5 s）更快（0.05）。C组MBV和vcfa的t63%均无变化。CO的动力学不受ET的显著影响，但CO在适应期和稳态的振幅在第10天显著高于第0天（P< 0.05），而C组没有变化。结论：这些数据支持了耐力训练导致血流更快适应运动肌肉的假设，并进一步表明这种反应发生在训练计划的早期。
Objective:The hypothesis that the adaptation to endurance exercise training included a faster increase in blood flow at the onset of exercise was tested in 12 healthy young men who endurance-trained (ET) 2 h/day, for 10 days at 65% V̇O2peak on a cycl and in 11 non-training control (C) subjects.Methods:Blood flow was estimated from changes in femoral artery mean blood velocity (MBV) by pulsed Doppler. Beat-by-beat changes in cardiac output (CO) and mean arterial pressure (MAP) were obtained by impedance cardiography and a Finapres finger cuff, respectively. MBV, MAP and CO were measured at rest and during 5 min of dynamic knee extension exercise. Both legs worked alternately with 2 s raising and lowering a weight (15% maximal voluntary contraction) followed by 2 s rest while the other leg raised and lowered the weight.Results:In the ET group the time to 63% (T63%) of the approximately exponential increase in MBV following 10 days of training (8.6 ± 1.2 s, mean ± s.e.) was significantly faster than the Day 0 response (14.2 ± 2.1 s,P< 0.05). The T63%of femoral artery vascular conductance (VCfa) was also faster following 10 days of ET (9.4 ± 0.9 s) versus Day 0 (16.0 ± 2.5 s) (0.05). There was no change in the T63%of both MBV and VCfafor the C group. The kinetics of CO were not significantly affected by ET, but the amplitude of CO in the adaptive phase, and at steady state, were significantly greater (P< 0.05) at Day 10 compared to Day 0 for the ET group with no change in the C group.Conclusions:These data supported the hypothesis that endurance training resulted in faster adaptation of blood flow to exercising muscle, and further showed that this response occurred early in the training program.
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短期日常运动活动增强大鼠骨骼肌小动脉内皮NO的合成。
DOI：
10.1152/jappl.1994.76.5.2241
发表时间：
1994
期刊：
Journal of applied physiology (Bethesda, Md. : 1985)
影响因子：
--
作者：
Sun,D;Huang,A;Koller,A;Kaley,G
通讯作者：
Kaley,G
前列腺素对人类运动引起的血管舒张的贡献。
DOI：
10.1152/ajpheart.1993.265.1.h171
发表时间：
1993
期刊：
The American journal of physiology
影响因子：
--
作者：
Wilson,JR;Kapoor,SC
通讯作者：
Kapoor,SC
DOI：
10.1073/pnas.84.24.9265
发表时间：
1987-12-01
影响因子：
11.1
作者：
IGNARRO, LJ;BUGA, GM;CHAUDHURI, G
通讯作者：
CHAUDHURI, G
在长时间缓慢的跑步机运动过程中，大鼠肌肉血流量随时间变化。
DOI：
10.1152/ajpheart.1983.244.6.h814
发表时间：
1983
期刊：
The American journal of physiology
影响因子：
--
作者：
Laughlin,MH;Armstrong,RB
通讯作者：
Armstrong,RB
影响因子：
20.1
作者：
KOLLER, A;SUN, D;KALEY, G
通讯作者：
KALEY, G