A randomized trial of two forms of therapeutic activity to improve walking: effect on the energy cost of walking.

A randomized trial of two forms of therapeutic activity to improve walking: effect on the energy cost of walking.
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两种改善步行的治疗活动的随机试验:对步行能量消耗的影响。

DOI:
10.1093/gerona/glp098
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发表时间:
2009
期刊:
The journals of gerontology. Series A, Biological sciences and medical sciences
影响因子:
--
通讯作者:
Studenski,StephanieA
Studenski,StephanieA
中科院分区:
--
文献类型:
--
作者:
VanSwearingen,JessieM;Perera,Subashan;Brach,JenniferS;Cham,Rakie;Rosano,Caterina;Studenski,StephanieA

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背景改善活动性的治疗活动通常包括步行练习和改善耐力、力量和平衡缺陷的锻炼。由于步行也可能是能源效率低下的人与流动性下降,另一种方法是通过改善时间和协调(TC)的movement.MethodsThis试点随机试验的老年人缓慢和可变的步态提供了两种类型的治疗活动超过12周,以减少能源成本。一个解决步行,耐力,平衡和力量(WEBS),另一个专注于TC。结果是步行的能量成本和措施mobility.ResultsOf 50名参与者(平均年龄,77.2 ± 5.5岁,65%的女性),47完成了研究。基线步态速度为0.85 ± 0.13 m/s,行走能量消耗为0.30 ± 0.10 mL/kg/m,接近正常值的两倍。两种干预均增加了步态速度(TC增加0.21 m/s,WEBS增加0.14 m/s,p<0.001)。与WEBS相比,TC使步行能量消耗降低0.10 ± 0.03 mL/kg/m(p<0.001),使改良步态不稳评定量表降低1.5 ± 0.6分(p<0.05)。TC比WEBS在自我报告的行走信心方面获得了9.8 ± 3.5分的增益(p<0.01)。结论在步态缓慢和可变的老年人中,集中于TC的活动减少了行走的能量消耗,提高了行走的信心,同时产生了至少相等的移动性增益。为了优化流动性,未来更大规模的研究应该在更长的时间内评估TC和WEBS的各种组合。
BackgroundTherapeutic activities to improve mobility often include walking practice and exercises to improve deficits in endurance, strength, and balance. Because walking may also be energy inefficient in people with decreased mobility, another approach is to reduce energy cost by improving timing and coordination (TC) of movement.MethodsThis pilot randomized trial of older adults with slow and variable gait offered two types of therapeutic activity over 12 weeks. One addressed Walking, Endurance, Balance, and Strength (WEBS) and the other focused on TC. Outcomes were energy cost of walking and measures of mobility.ResultsOf 50 participants (mean age, 77.2 ± 5.5 years, 65% women), 47 completed the study. Baseline gait speed was 0.85 ± 0.13 m/s and energy cost of walking was 0.30 ± 0.10 mL/kg/m, nearly twice normal. Both interventions increased gait speed (TC by 0.21 m/s and WEBS by 0.14 m/s,p< .001). TC reduced the energy cost of walking 0.10 ± 0.03 mL/kg/m more than WEBS (p< .001) and reduced the modified Gait Abnormalities Rating Scale 1.5 ± 0.6 more points than WEBS (p< .05). TC had a 9.8 ± 3.5 points greater gain than WEBS in self-reported confidence in walking (p< .01).ConclusionsIn older adults with slow and variable gait, activity focused on TC reduced the energy cost of walking and improved confidence in walking more than WEBS while generating at least equivalent gains in mobility. To optimize mobility, future larger studies should assess various combinations of TC and WEBS over longer periods of time.
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