- Reviewed by Toni Golen, MD, Editor in Chief, Harvard Women's Health Watch; Editorial Advisory Board Member, Harvard Health Publishing; Contributor
Having a low level of vitamin D greatly increases a person's risk of age-related loss of muscle strength (known as dynapenia), a major risk factor for falls, a new study suggests.
The study, published online Sept. 15, 2022, by the journal Calcified Tissue International and Musculoskeletal Research, analyzed data from more than 3,200 people ages 50 and older with no previous dynapenia. Researchers tracked them for four years as part of the English Longitudinal Study of Aging, a long-term study that began in 2002. Participants' vitamin D levels were measured with blood tests at the start and categorized as sufficient (defined as more than 50 nanomoles per liter, or nmol/L), insufficient (30 to 49 nmol/L), or deficient (less than 30 nmol/L). After four years, grip strength was evaluated as a measure of participants' overall muscle strength.
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About the Author
Maureen Salamon, Executive Editor, Harvard Women's Health Watch
About the Reviewer
Toni Golen, MD, Editor in Chief, Harvard Women's Health Watch; Editorial Advisory Board Member, Harvard Health Publishing; Contributor
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