期刊
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
卷 58, 期 9, 页码 1721-1726出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1532-5415.2010.03035.x
关键词
muscle strength; functional capacity; mobility; body mass index; ROC analysis
资金
- Ministry of Education, Finland
- National Institutes of Health, National Institute on Aging
- Finnish Academy [125494]
- Academy of Finland (AKA) [125494, 125494] Funding Source: Academy of Finland (AKA)
OBJECTIVES To determine optimal hand-grip strength cut points for likelihood of mobility limitation in older people and to study whether these cut points differ according to body mass index (BMI). DESIGN Cross-sectional analysis of data. SETTING Data collected in the Finnish population-based Health 2000 Survey. PARTICIPANTS One thousand eighty-four men and 1,562 women aged 55 and older with complete data on anthropometry, hand-grip strength and self-reported mobility. MEASUREMENTS Mobility limitation was defined as difficulty walking 0.5 km or climbing stairs. Receiver operating characteristic analysis was used to estimate hand-grip strength cut points for likelihood of mobility limitation. RESULTS The overall hand-grip strength cut points for likelihood of mobility limitation were 37 kg (sensitivity 62%; specificity 76%) for men and 21 kg (sensitivity 67%; specificity 73%) for women. The effect of the interaction between hand-grip strength and BMI on mobility limitation was significant in men (P=.02), but no such interaction was observed in women (P=.16). In men, the most-optimal cutoff points were 33 kg (sensitivity 73%; specificity 79%) for normal-weight men, 39 kg (sensitivity 67%; specificity 71%) for overweight men, and 40 kg (sensitivity 57%; specificity 68%) for obese men. In women, BMI-specific hand-grip strength cutoff values was not markedly more accurate than the overall cutoff value. CONCLUSION The hand-grip strength test is a useful tool to identify persons at risk of mobility limitation. In men, hand-grip strength cut points for mobility increased with BMI, whereas in women, only one hand-grip strength threshold was identified.
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