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KMID : 0384319990200040377
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Korean Journal of Family Medicine
1999 Volume.20 No. 4 p.377 ~ p.385
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The relationship between grip strength and femoral and vertebral bone mineral density in peri- and postmenopausal women
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Abstract
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Background : It is widely accepted that muscle strength and bone mineral density have a significant positive correlation and most previous literature focus on the association between specific muscle groups and adjacent bones. This study examined the association of grip strength with bone density at distant sites, such as spine and femur area in peri and postmenopausal women.
Methods : The study subjects were 30 perimenopausal and 108 postmenopausal women aged 40 years
and older. Bone mineral density was measured at the lumbar spine and femoral area using dual energy ~, . xray absorptiometry. Grip strength was measured in both the dominant and nondominant hands using a dynamometer. Other data were gathered from the questionnaire.
Results : Significant negative correlations were noted between spinal and femoral bone mineral densityand age and postmenopausal duration, and significant positive correlations were found between spinal and femoral bone mineral density and body weight, height, body mass index and both grip strength.
Those who exercised had significantly higher spinal bone mineral density than those who did not and i
smokers had significantly lower spinal bone density than nonsmokers. ghere was no significant differ- + ence in bone mineral density by estrogen and calcium use. The multiple regression analysis examined the association of grip strength in the dominant hand to bone mineral density after adjustment for the confounding covariates.
Conclusions : Weak grip strength in the dominant hand is a marker for lower bone mineral density
in peri and postmenopausal women. Grip strength can be a useful index of osteoporosis.
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(J Korean Acad Fam Med 1999;20 : 377 385)
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