Zion Adrian S, De Meersman Ronald, Diamond Beverly E, Bloomfield Daniel M
Department of Rehabilitation, Medicine College of Physicians and Surgeons Columbia University, 630 West 168th Street, Box 38, New York, NY 10032, USA.
Clin Auton Res. 2003 Aug;13(4):286-92. doi: 10.1007/s10286-003-0117-3.
Falls are a common hazard in the elderly. Orthostatic hypotension (OH) is prevalent in older patients and contributes to the high incidence of falls. Our aim was to test whether a home-based resistance-training program (HBRT) using elastic resistance bands could safely and effectively increase muscle strength and functional ability, and attenuate the orthostatic fall in blood pressure. Eight subjects (> 60 yrs) underwent orthostatic provocations; muscle strength testing (isometric and dynamic), and a functional test of gait and mobility (Timed Up & Go), at baseline and following 8 weeks of training. Ten exercises were assigned and customized to each participant. At 8 weeks, significant increases occurred in dynamic strength in the chest press ( p = 0.017), quadriceps extension ( p = 0.017), and leg press (p = 0.025); no significant differences occurred in isometric strength or in blood pressures. Functional mobility increased in 7 of 8 subjects. There were no falls during the investigation period.
A HBRT program using elastic resistance bands effectively increases dynamic muscle strength in elderly individuals with OH. Although no changes occurred in orthostatic blood pressures, which could be attributed to the limited length of the program, this therapy may be recognized as a safe method to improve strength, functional ability, and promote physical activity - variables that can reduce the incidence of falls and enhance the quality of life in this population.
跌倒在老年人中是一种常见的危险因素。体位性低血压（OH）在老年患者中很普遍，并且导致了高跌倒发生率。我们的目的是测试使用弹力带的居家抗阻训练计划（HBRT）是否能够安全有效地增加肌肉力量和功能能力，并减轻体位性血压下降。八名受试者（>60岁）在基线时以及训练8周后接受了体位激发试验、肌肉力量测试（等长和动态）以及步态和活动能力的功能测试（定时起立行走测试）。为每位参与者安排并定制了十项练习。在8周时，卧推（p = 0.017）、股四头肌伸展（p = 0.017）和腿举（p = 0.025）的动态力量显著增加；等长力量或血压没有显著差异。8名受试者中有7名的功能活动能力有所提高。在调查期间没有发生跌倒。
使用弹力带的HBRT计划有效地增加了患有OH的老年人的动态肌肉力量。尽管体位性血压没有变化，这可能归因于该计划的时间有限，但这种疗法可被认为是一种安全的方法，能够提高力量、功能能力并促进身体活动，这些因素可以降低该人群的跌倒发生率并提高生活质量。
