Muscle Mass, Strength, Power and Physical Performance and Their Association with Quality of Life in Older Adults, the Study of Muscle, Mobility and Aging (SOMMA).
N Petnehazy, H N Barnes, A B Newman, S B Kritchevsky, S R Cummings, R T Hepplen, P M Cawthon
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引用次数: 0
Abstract
Background: Sarcopenia negatively impacts quality of life. It is unclear whether different measures of muscle size, strength, physical performance, and fitness have similar associations with quality of life.
Objective: To describe associations of sarcopenia metrics with quality of life outcomes.
Participants: Community-dwelling adults aged 70+ years participating in the SOMMA (Study of Muscle, Mobility and Aging) study, (N=875 ((women: 519, men:356)), age, years 76.3±5.0).
Design and settings: Two academic medical centers.
Measurements: Measures included muscle size (MRI- muscle volume. D3Cr muscle mass); strength and power (grip strength, leg extension power and strength, stair climb); walking and physical performance (4m and 400m walk, SPPB (Short Physical Performance Battery), chair stand); fitness (VO2 peak); health related quality of life (EQ-5D); and anthropometrics (weight, height, and body mass index). Results were stratified by sex. Correlations, scatterplots and linear regression models described the association between various measures of sarcopenia and fitness with overall quality of life score (EQ5D VAS) as a continuous variable. We also quantified differences between sarcopenia and fitness measures by overall QOL (Quality of Life) as a categorical variable (low, medium, high) and by QOL subcomponents (pain and discomfort, problems with usual activities, mobility, anxiety and depression, and problems with self-care) using distributionally appropriate methods.
Results: Walking tests and physical performance were most consistently (but modestly) associated with overall quality of life (r~0.2, p<.001) and its subcomponents. For both men and women, several sarcopenia and fitness measures were more strongly associated with pain and usual activity than other QOL components.
Conclusions: Poor performance, lower fitness and lower strength are related to worse quality of life, particularly pain, in older adults. Future studies should quantify these relationships longitudinally.
背景肌肉疏松症对生活质量有负面影响。目前还不清楚不同的肌肉大小、力量、体能表现和健身情况是否与生活质量有类似的关联：描述肌肉疏松症指标与生活质量结果之间的关系：设计与环境：两个学术医疗中心：两个学术医疗中心：测量项目包括肌肉大小（MRI-肌肉体积、D3Cr肌肉质量）；力量和功率（握力、伸腿力量和功率、爬楼梯）；步行和体能（4米和400米步行、SPPB（短期体能测试）、椅子站立）；体能（VO2峰值）；与健康相关的生活质量（EQ-5D）；以及人体测量（体重、身高和体重指数）。结果按性别进行了分层。相关性、散点图和线性回归模型描述了肌肉疏松症和体能的各种测量指标与作为连续变量的总体生活质量评分（EQ5D VAS）之间的关联。我们还采用适合分布的方法，将总体生活质量（QOL）作为一个分类变量（低、中、高），并按 QOL 子项（疼痛和不适、日常活动问题、活动能力、焦虑和抑郁以及自我护理问题）来量化肌肉疏松症与体能测量之间的差异：结果：步行测试和体能表现与总体生活质量的相关性最为一致（但并不明显）（r~0.2，p 结论：体能表现差、体能较差和体能较低与总体生活质量的相关性并不明显：表现不佳、体能较差和力量较弱与老年人生活质量下降，尤其是疼痛有关。今后的研究应纵向量化这些关系。
期刊介绍：
The Journal of Frailty & Aging is a peer-reviewed international journal aimed at presenting articles that are related to research in the area of aging and age-related (sub)clinical conditions. In particular, the journal publishes high-quality papers describing and discussing social, biological, and clinical features underlying the onset and development of frailty in older persons. The Journal of Frailty & Aging is composed by five different sections: - Biology of frailty and aging In this section, the journal presents reports from preclinical studies and experiences focused at identifying, describing, and understanding the subclinical pathophysiological mechanisms at the basis of frailty and aging. - Physical frailty and age-related body composition modifications Studies exploring the physical and functional components of frailty are contained in this section. Moreover, since body composition plays a major role in determining physical frailty and, at the same time, represents the most evident feature of the aging process, special attention is given to studies focused on sarcopenia and obesity at older age. - Neurosciences of frailty and aging The section presents results from studies exploring the cognitive and neurological aspects of frailty and age-related conditions. In particular, papers on neurodegenerative conditions of advanced age are welcomed. - Frailty and aging in clinical practice and public health This journal’s section is devoted at presenting studies on clinical issues of frailty and age-related conditions. This multidisciplinary section particularly welcomes reports from clinicians coming from different backgrounds and specialties dealing with the heterogeneous clinical manifestations of advanced age. Moreover, this part of the journal also contains reports on frailty- and age-related social and public health issues. - Clinical trials and therapeutics This final section contains all the manuscripts presenting data on (pharmacological and non-pharmacological) interventions aimed at preventing, delaying, or treating frailty and age-related conditions.The Journal of Frailty & Aging is a quarterly publication of original papers, review articles, case reports, controversies, letters to the Editor, and book reviews. Manuscripts will be evaluated by the editorial staff and, if suitable, by expert reviewers assigned by the editors. The journal particularly welcomes papers by researchers from different backgrounds and specialities who may want to share their views and experiences on the common themes of frailty and aging.The abstracting and indexing of the Journal of Frailty & Aging is covered by MEDLINE (approval by the National Library of Medicine in February 2016).
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