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Hillstrom HJ, Soeters R, Miranda M, Backus SI, Hafer J, Gibbons M, Thaqi I, Lenhoff M, Hannan MT, Endo Y, Sculco T, Lane J. Effect of increased serum 25(OH)D and calcium on structure and function of post-menopausal women: a pilot study. Arch Osteoporos 2020; 15:154. [PMID: 33009959 PMCID: PMC7532965 DOI: 10.1007/s11657-020-00814-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 09/01/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED The purpose was to determine if increasing serum 25(OH)D and calcium in postmenopausal women increased skeletal muscle size, strength, balance, and functional task performance while decreasing muscle fatigue. PCSA of the vastus lateralis increased and ascent of stairs time decreased after 6 months of increased serum 25(OH)D. PURPOSE The Institute of Medicine recommends ≥ 20 ng/ml of serum 25-hydroxyvitamin D [25(OH)D] for bone and overall health. Serum 25(OH)D levels have been associated with physical performance, postural sway, and falls. The purpose of this study was to determine if increasing postmenopausal women's serum 25(OH)D levels from 20-30 ng/ml to 40-50 ng/ml improved skeletal muscle size, strength, balance, and functional performance while decreasing skeletal muscle fatigue. METHODS Twenty-six post-menopausal women (60-85 years old) with baseline serum 25(OH)D levels between 20 and 30 ng/ml were recruited. Oral over-the-counter (OTC) vitamin D3 and calcium citrate were prescribed to increase subjects' serum 25(OH)D to levels between 40 and 50 ng/ml, serum calcium levels above 9.2 mg/dl, and PTH levels below 60 pg/ml, which were confirmed at 6 and 12 weeks. Outcome measures assessed at baseline and 6 months included muscle physiological cross-sectional area (PCSA), muscle strength, postural balance, time to perform functional tasks, and muscle fatigue. Repeated measures comparisons between baseline and follow-up were performed. RESULTS Nineteen subjects completed the study. One individual could not afford the time commitment for the repeated measures. Three individuals did not take their vitamin D as recommended. Two subjects were lost to follow-up (lack of interest), and one did not achieve targeted serum 25(OH)D. Vastus lateralis PCSA increased (p = 0.007) and ascent of stair time decreased (p = 0.042) after 6 months of increasing serum 25(OH)D levels from 20-30 ng/ml to 40-50 ng/ml. Isometric strength was unchanged. Anterior-posterior center of pressure (COP) excursion and COP path length decreased (p < 0.1) albeit non-significantly, suggesting balance may improve from increased serum 25(OH)D and calcium citrate levels. CONCLUSIONS Several measures of muscle structure and function were sensitive to elevated serum 25(OH)D and calcium levels indicating that further investigation of this phenomenon in post-menopausal women is warranted.
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Affiliation(s)
- H. J. Hillstrom
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - R. Soeters
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - M. Miranda
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - S. I. Backus
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - J. Hafer
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA ,Biomechanics Lab, Department of Kinesiology, University of Massachusetts, Totman rm.110, 30 Eastman Lane, Amherst, MA USA
| | - M. Gibbons
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - I. Thaqi
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - M. Lenhoff
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - M. T. Hannan
- Institute for Aging Research, Hebrew SeniorLife, Harvard Medical School, 1200 Centre Street, Boston, MA USA
| | - Y. Endo
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - T. Sculco
- Leon Root Motion Analysis Laboratory (LRMALab), Hospital for Special Surgery (HSS), 535 East 70th Street, New York, NY USA
| | - J. Lane
- Metabolic Bone Disease Service, HSS, 535 East 70th Street, New York, NY USA
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Hillstrom H, Demp P, Song J, Heilman B, Lenhoff M, Backus S, Deland J. A GEOMETRICAL FOREFOOT MODEL AND IT'S RELATIONSHIP TO FOOT FUNCTION: A PILOT STUDY. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70133-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lenhoff M, Carter T, Pansy B, Wolff A, Cheng R, Backus S, Crisco J, Hillstrom H, Wolfe S. AN EXTENSION TO THE ISB WRIST JOINT COORDINATE SYSTEM: AN IN VITRO ACCURACY STUDY. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70188-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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