Calcium absorptive consistency

Robert P. Heaney, Connie M. Weaver, Mary Lee Fitzsimmons, Robert R. Recker

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

Calcium absorption efficiency was measured two or three times each in 74 premenopausal and 142 postmenopausal women under conditions predicted to alter absorptive performance. A woman's absorptive consistency was evaluated across differing loads, differing intervals, and substances of differing intrinsic absorbability. In all these circumstances there was a statistically significant correlation between a woman's absorption under differing test situations accounting for up to 60% of the variance typically found in cross-sectional studies. For example, when the same substance but at differing load levels was tested three times over an 8 week period, various coefficients of correlation ranged from +0.773 to +0.849 (P <0.001). Even over intervals as long as 5 years correlation of absorption fraction within individuals remained significant (r = +0.487, P <0.001).

Original languageEnglish (US)
Pages (from-to)1139-1142
Number of pages4
JournalJournal of Bone and Mineral Research
Volume5
Issue number11
DOIs
StatePublished - Nov 1990

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism
  • Orthopedics and Sports Medicine

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