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The effect of grip strength on radial bone in postmenopausal women
Author(s) -
Sandler Rivka Black,
Cauley Jane A.,
Sashin Donald,
Scialabba Mary Ann,
Kriska Andrea M.
Publication year - 1989
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100070317
Subject(s) - grip strength , radius , postmenopausal women , muscle strength , bone density , medicine , materials science , orthodontics , physical medicine and rehabilitation , physical therapy , osteoporosis , computer science , computer security
This communication explores the correlation in 255 postmenopausal women of grip strength to bone tissue density (BTD) and cross‐sectional area (CSArea) of the radius. While grip strength correlated cross‐sectionally with the baseline measures of both BTD and CSArea, grip strength affected differentially the changes that transpired in the two bone parameters over the 3 years of the study. Thus, the increases in the CSArea of the radius were significantly enhanced by higher grip strength, while BTD losses were not. Since the power of muscle contraction is a factor in the mechanical loading of a bone, it is argued that the differential effects of grip strength on the two bone parameters of the radius suggest that moderate loading can effect favorable changes in the geometry of the bone, without necessarily affecting changes in BTD.