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首页> 外文期刊>Journal of applied physiology >Superficial femoral artery blood flow with intermittent pneumatic compression of the lower leg applied during walking exercise and recovery
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Superficial femoral artery blood flow with intermittent pneumatic compression of the lower leg applied during walking exercise and recovery

机译：行走运动和恢复过程中施加的小腿间歇气动压缩的表面股动脉血流

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The purpose of this study was to determine if muscle blood flow during walking exercise and postexercise recovery can be augmented through the application of intermittent compression of the lower legs applied during the diastolic phase of the cardiac cycle. Results from four conditions were assessed: no compression (NoComp), compression during walking (ExComp), compression during postexercise recovery (RecComp), and compression applied throughout (AllComp). Superficial femoral artery (SFA) blood flow was measured (Doppler ultrasound) during rest and postexercise recovery. Mean arterial blood pressure (MAP, finger photoplethysmography) was used to calculate vascular conductance as VC = SFA flow/MAP. Near infrared spectroscopy measured changes in oxygenated (O(2)Hb) and deoxygenated hemoglobin concentration throughout the test. Compression during exercise increased SFA blood flow measured over the first 15 s of postexercise recovery (AllComp: 532.2 +/- 123.1 mL/min; ExComp: 529.8 +/- 99.2 mL/min) compared with NoComp (462.3 +/- 87.3 mL/min P < 0.05) and corresponded to increased VC (NoComp: 4.7 +/- 0.9 mL.min(-1).mmHg(-1) versus ExComp: 5.5 +/- 1.0 mL.min(-1).mmHg(-1), P < 0.05). Similarly, compression throughout postexercise recovery also resulted in increased SFA flow (AllComp: 190.5 +/- 57.1 mL/min; RecComp: 158.7 +/- 49.1 mL/min versus NoComp: 108.8 +/- 28.5 mL/min, P < 0.05) and vascular conductance. Muscle contractions during exercise reduced total hemoglobin with O(2)Hb comprising similar to 57% of the observed reduction. Compression during exercise augmented this reduction (P < 0.05) with O2HB again comprising similar to 55% of the reduction. Total hemoglobin was reduced with compression during postexercise recovery (P < 0.05) with O(2)Hb accounting for similar to 40% of this reduction. Results from this study indicate that intermittent compression applied during walking and during postexercise recovery enhanced vascular conductance during exercise and elevated postexercise SFA blood flow and tissue oxygenation during recovery.
机译：本研究的目的是确定步行运动期间的肌血流量和分段恢复是否可以通过在心脏周期的舒张相期间施加的下腿的间歇压缩来增强。评估了四种条件的结果：无压缩（NOC组合），步行期间的压缩（EXCOMP），在分析期间恢复（RECCOMP）期间的压缩，并在整个（ALLCOMP）中施加压缩。在休息期间测量（多普勒超声波）血液流动（Doppler超声）血流。平均动脉血压（MAP，手指光增性溶血性描记）用于计算VC = SFA流量/地图的血管传导。在整个试验中近红外光谱测量氧化（O（2）Hb）和脱氧血红蛋白浓度的变化。运动过程中的压缩增加了SFA血液流量，测量了第一个恢复的前15秒（ALLCOMP：532.2 +/- 123.1ml / min; excomp：529.8 +/- 99.2 ml / min）与Nocomp相比（462.3 +/- 87.3 ml /最小P <0.05）并对应于VC的增加（NOComp：4.7 +/- 0.9 ml.min（-1）.mmHg（-1）与Excomp：5.5 +/- 1.0 ml.min（-1）.mmhg（ - 1），P <0.05）。类似地，整个分段恢复的压缩也导致SFA流量增加（ALLCOMP：190.5 +/- 57.1ml / min; RECCOMP：158.7 +/- 49.1 ml / min与NOC组合：108.8 +/- 28.5 ml / min，P <0.05）和血管导电。运动期间的肌肉收缩减少了o（2）Hb的总血红蛋白，其包含与观察到的减少的57％相似。在运动期间压缩增强了这种减少（P <0.05），再次将O 2 Hb包含与减少的55％相似。在分期恢复期间，通过o（2）HB核算的恢复期间，血红蛋白的全部压缩减少，同样达到该减少的40％。本研究的结果表明，在步行期间和在后期恢复期间应用的间歇压缩增强了运动期间的血管传导，并且在恢复过程中升高了SFA血流和组织氧合。

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