Distal Radius Bone Mineral Density and Grip Strength
in Peri/Postmenopausal Thai Women
MANEE RATIANACHAIYANONT,M.D.*,
VILAI KUPTNIRAT SAIKUL, M.D.**,
CHONGDEE DANG RAT, M.Sc.*
Affiliation : * Division of Gynecologic Endocrinology, Depanment of Obstetrics and Gynecology,
** Depanment of Physical Medicine and Rehabilitation, Faculty of Medicine Siriraj Hospital, Mahidol University,
Bangkok 10700, Thailand.
AbstractTo detennine the relationship between distal radius bone mineral density (BMD) and grip
strength (GS) in peri/post menopausal Thai women. 177 healthy volunteers, ~0 years old, were
included. Distal radius BMD of the non-dominant side was measured using dual energy X-ray
absorptiometry. GS of both dominant and non-dominant sides was measured using a Jamar dynamometer. The association between BMD and GS was detennined by correlation analysis. Other factors
possibly affecting the BMD or GS including age, years since menopause (YSM), body weight (BW),
height (Ht) and body mass index (BMI) were analyzed by the multiple regression method. It was
found that BMD had statistically significant but weak positive correlation toGS (r =0.262, p < 0.001
for the dominant side, r =0.193, p < 0.001 for non-dominant side). Age and YSM had a negative
correlation, whereas, BW and Ht had a positive correlation to either BMD or GS. After multiple
regression analysis, the significant predictors of BMD were age and BW, of dominant GS were age
and Ht, and of non-dominant GS was YSM. In conclusion, decrements in distal radius BMD and in
GS were found in peri/postmenopausal women. Aging seems to be the most important factor for
these features. Although the GS has statistically significant correlation to the corresponding BMD, the
clinical significance might not be obvious. Furthennore, the stronger correlation of BMD to the
contralateral dominant GS than to the ipsilateral non-dominant GS implies that the influence of
muscular strength on BMD, if present, is not due to a direct effect in this age group.
Keywords : Grip Strength, Bone Mineral Density, Peri/Postmenopause, Radius
All Articles
Download
