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J Am Geriatr Soc. 2010 Sep;58(9):1721-6. doi: 10.1111/j.1532-5415.2010.03035.x.

Hand-grip strength cut points to screen older persons at risk for mobility limitation.

Author information

1
Gerontology Research Centre, Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland. janne.sallinen@vtt.fi

Abstract

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.

PMID:
20863331
PMCID:
PMC2946262
DOI:
10.1111/j.1532-5415.2010.03035.x
[Indexed for MEDLINE]
Free PMC Article

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