Association Between Vitamin D Status and Physical Performance: the InCHIANTI Study
Overview
Authors
Affiliations
Background: Vitamin D status has been hypothesized to play a role in musculoskeletal function. Using data from the InCHIANTI study, we examined the association between vitamin D status and physical performance.
Methods: A representative sample of 976 persons aged 65 years or older at study baseline were included. Physical performance was assessed using a short physical performance battery (SPPB) and handgrip strength. Multiple linear regression was used to examine the association between vitamin D (serum 25OHD), parathyroid hormone (PTH), and physical performance adjusting for sociodemographic variables, behavioral characteristics, body mass index, season, cognition, health conditions, creatinine, hemoglobin, and albumin.
Results: Approximately 28.8% of women and 13.6% of men had vitamin D levels indicative of deficiency (serum 25OHD < 25.0 nmol/L) and 74.9% of women and 51.0% of men had vitamin D levels indicative of vitamin D insufficiency (serum 25OHD < 50.0 nmol/L). Vitamin D levels were significantly associated with SPPB score in men (beta coefficient [standard error (SE)]: 0.38 [0.18], p =.04) and handgrip strength in men (2.44 [0.84], p =.004) and women (1.33 [0.53], p =.01). Men and women with serum 25OHD < 25.0 nmol/L had significantly lower SPPB scores whereas those with serum 25OHD < 50 nmol/L had significantly lower handgrip strength than those with serum 25OHD > or =25 and > or =50 nmol/L, respectively (p <.05). PTH was significantly associated with handgrip strength only (p =.01).
Conclusions: Vitamin D status was inversely associated with poor physical performance. Given the high prevalence of vitamin D deficiency in older populations, additional studies examining the association between vitamin D status and physical function are needed.
Zhang F, Li W Ther Clin Risk Manag. 2024; 20:577-595.
PMID: 39253031 PMC: 11382659. DOI: 10.2147/TCRM.S471191.
Study on the Polymorphic Loci of Explosive Strength-Related Genes in Elite Wrestlers.
Qi S, Yu J, Meng F, Wei Z, Liang Z Genes (Basel). 2024; 15(8).
PMID: 39202428 PMC: 11353954. DOI: 10.3390/genes15081068.
Sex-dependent association of serum vitamin D with muscle strength in older adults: NHANES 2001-2002.
Sponchiado I, Limirio L, de Branco F, de Oliveira E Eur J Clin Nutr. 2024; 78(10):847-854.
PMID: 38987658 DOI: 10.1038/s41430-024-01472-2.
Schiavo L, Santella B, Paolini B, Rahimi F, Giglio E, Martinelli B Nutrients. 2024; 16(10).
PMID: 38794686 PMC: 11123955. DOI: 10.3390/nu16101448.
Xiong A, Li H, Lin M, Xu F, Xia X, Dai D Front Endocrinol (Lausanne). 2024; 15:1327623.
PMID: 38362274 PMC: 10867111. DOI: 10.3389/fendo.2024.1327623.