Supine Lower Body Negative Pressure Exercise During Bed Rest Maintains Upright Exercise Capacity.
Supine Lower Body Negative Pressure Exercise During Bed Rest Maintains Upright Exercise Capacity.
复制标题
卧床休息期间仰卧下半身负压运动保持直立运动能力。
DOI：
10.1152/jappl.2000.89.1.218
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
A. Hargens
中科院分区：
文献类型：
--
作者：
D. Watenpaugh;R. Ballard;S. Schneider;Stuart M. C. Lee;A. Ertl;Jacqueline M. William;W. Boda;K. Hutchinson;A. Hargens
卧床休息和太空飞行会降低运动健康。仰卧下体负压（LBNP）跑步机运动提供了心血管和肌肉骨骼的综合刺激，类似于在地球重力下直立运动所施加的刺激。我们假设，在体重1.0-1.2 （58 +/- 2 mmHg LBNP）的LBNP室内，每天40分钟仰卧运动可以在6度头朝下卧床休息（模拟微重力）的15天内保持有氧适能和短跑速度。七名男性受试者按随机顺序进行了两项卧床休息研究：一项作为对照研究（不运动），另一项每天仰卧在跑步机上进行LBNP运动。控制性卧床休息后，直立跑步机运动试验中至疲劳时间缩短10%，试验中峰值耗氧量缩短14%，冲刺速度缩短16%（均P < 0.05）。卧床休息时仰卧的LBNP运动使上述所有变量保持在卧床休息前的水平。我们的研究结果支持进一步评估LBNP运动作为对抗长期微重力诱导的去条件化的对策。
Bed rest and spaceflight reduce exercise fitness. Supine lower body negative pressure (LBNP) treadmill exercise provides integrated cardiovascular and musculoskeletal stimulation similar to that imposed by upright exercise in Earth gravity. We hypothesized that 40 min of supine exercise per day in a LBNP chamber at 1.0-1.2 body wt (58 +/- 2 mmHg LBNP) maintains aerobic fitness and sprint speed during 15 days of 6 degrees head-down bed rest (simulated microgravity). Seven male subjects underwent two such bed-rest studies in random order: one as a control study (no exercise) and one with daily supine LBNP treadmill exercise. After controlled bed-rest, time to exhaustion during an upright treadmill exercise test decreased 10%, peak oxygen consumption during the test decreased 14%, and sprint speed decreased 16% (all P < 0.05). Supine LBNP exercise during bed rest maintained all the above variables at pre-bed-rest levels. Our findings support further evaluation of LBNP exercise as a countermeasure against long-term microgravity-induced deconditioning.
直立运动或仰卧下半身负压运动可维持卧床休息后的运动反应。
影响因子：
4.1
作者：
Lee,SM;Bennett,BS;Hargens,AR;Watenpaugh,DE;Ballard,RE;Murthy,G;Ford,SR;Fortney,SM
通讯作者：
Fortney,SM
肌肉随着离心运动而变化：对地球和太空的影响。
DOI：
--
发表时间：
1989
期刊：
Advances in myochemistry
影响因子：
--
作者：
Hargens,AR;Parazynski,S;Aratow,M;Friden,J
通讯作者：
Friden,J