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【medical-news】跑步机能帮助恢复中风病人的行走
——Study Shows Exercising on Treadmill Improves Walking Ability of Stroke Patients
Aug. 28, 2008 -- Treadmill exercise may improve stroke survivors' walking ability by rewiring parts of the brain, according to a new study.
The study also shows treadmill exercise may be better than stretching, the traditional exercise prescribed after a stroke, both for walking and overall fitness.
Researchers at the University of Maryland and Baltimore Veterans Affairs Medical Center compared 37 patients who performed "progressive task repetitive treadmill therapy" with 34 patients who did stretching. The patients had chronic hemiparesis, which is weakness on one side of the body, at least six months after a stroke. The patients had all completed conventional rehabilitation.
The treadmill group was given the goal of three 40-minute sessions per week on the treadmill at 60% of their heart rate reserve. They started out slower, adding duration and intensity every two weeks. The exercise program lasted six months.
The stretching group had the same number of sessions, and the length of each session was also the same. They performed a variety of traditional stretches on a raised mat table with the assistance of an instructor.
Researchers measured results in three ways: by looking at brain activity on MRIs, by measuring walking ability, and by evaluating overall fitness level. The treadmill group performed better in all three categories.
Treadmill participants increased their activity in certain parts of the brain by 72% on imaging tests. Brain activity changes did not occur in patients who did stretching exercise.
Researchers checked brain MRIs while participants did knee-flexing exercises that mimic walking. The MRIs showed increased blood oxygenation and flow in the brain stem and cerebellum of the stroke survivors who had used the treadmill but not in those who did stretching.
Researchers say the increases in blood oxygenation and flow indicated that the cerebellum and brain stem had been "recruited" to replace some of the walking functions of the cortical brain that had been damaged by the strokes.
"We saw what we call an equivalent of neuroplasticity -- a change in brain activation that reflects the brain's adaptability," says Andreas Luft, MD, in a news release. Luft is one of the study's lead authors and a professor of clinical neurology and neurorehabilitation in the department of neurology at the University of Zurich, Switzerland.
The treadmill group also increased their walking speed and their fitness more than those in the stretching group. This is particularly important because stroke survivors' immobility can lead to cardiovascular disease and diabetes.
In the study, published in Stroke: Journal of the American Heart Association, the authors argue that treadmill exercise should be included in long-term therapy programs for stroke survivors.
"It is promising that treadmill exercise can stimulate new or underused brain circuits and improve walking in stroke survivors even after completion of conventional rehabilitation therapy," Luft says.
http://www.webmd.com/stroke/news/20080827/treadmill-rewires-brain-after-stroke 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Treadmill Rewires Brain After Stroke
——Study Shows Exercising on Treadmill Improves Walking Ability of Stroke Patients
跑步机能促进中风后脑功能重新建立——研究表明跑步机练习能改善中风患者的行走能力
Aug. 28, 2008 -- Treadmill exercise may improve stroke survivors' walking ability by rewiring parts of the brain, according to a new study.
2008年8月28日——根据一项新的研究，跑步机运动可能通过重新建立部分脑的“连接”改善中风患者的行走能力。
The study also shows treadmill exercise may be better than stretching, the traditional exercise prescribed after a stroke, both for walking and overall fitness.
该研究还表明跑步机运动可能比传统的、用于中风后恢复的伸展运动更好。跑步机练习对行走能力和整体适应力都有更好的效果。
Researchers at the University of Maryland and Baltimore Veterans Affairs Medical Center compared 37 patients who performed "progressive task repetitive treadmill therapy" with 34 patients who did stretching. The patients had chronic hemiparesis, which is weakness on one side of the body, at least six months after a stroke. The patients had all completed conventional rehabilitation.
马里兰和巴尔地摩退伍军人事务医学中心大学（Maryland and Baltimore Veterans Affairs Medical Center）的研究员比较了37例接受“递增跑步机练习治疗”的患者与34例接受伸展运动的患者。这些患者均还有慢性轻偏瘫。他们中风后至少6月，其身体的某一侧有肌力减退和感觉减退。这些患者都得到了常规康复。
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作者:admin@医学,生命科学 2011-03-26 05:11
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