Artikel Jurnal
The Effects of Cholecalciferol 1000 IU Supplementation on Handgrip Strength in Elderly with Vitamin D Deficiency
Backgrounds: Vitamin D regulates muscle function by binding to vitamin D receptors
(VDR) via genomic signaling pathways. The biologically active form of vitamin D (1,25-
(OH)D) affects muscles by modulation of gene transcription and protein kinase
signaling pathways that support proliferation and muscle growth. Aging will result in
the interaction of vitamin D and VDR, affecting the regulation of muscle calcium
channels, followed by a decrease in the stimulation of muscle contractions.
Decreased synthesis and low vitamin D intake also affect serum level 25(OH)D.
Maintaining vitamin D status in the elderly with vitamin D deficiency is expected to
inhibit the decline in muscle strength and dysfunction.
Objectives: Determining the effect of giving cholecalciferol on handgrip strength.
Methods: An experimental study with randomized controlled trial (RCT) enrolled 54
elderly divided into treatment and control groups. The treatment group received
cholecalciferol 1000 IU/day, and the control group received a placebo for 12 weeks.
Both groups were examined for serum 25(OH) levels before and after treatment.
Results: Most samples in both groups (79.62%) showed vitamin D deficiency. There
was an effect of 1000 IU cholecalciferol supplementation on serum 25(OH)D levels
with a mean change of 3.8 (p
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