Journal List > Korean J Adult Nurs > v.25(5) > 1094444

Kim and Kim: Effect of Vitamin D Supplementation on the Physiological Indices, Muscle Mass, and Physical Functions of Aged Women



The purpose of this study was to investigate the effect of supplemental vitamin D on the physiological indices, muscle mass, and physical functions of aged women.


A non-equivalent pretest-posttest design was used. The participants were 65 elderly women with low serum vitamin D levels. This study was conducted for 12 weeks. The experimental group (n=34) received vitamin D and regular exercise whereas the control group (n=31) received only regular exercise. The data were analyzed by the IBM PASW Statistics (SPSS) 19.0 program.


Serum vitamin D (U=0.00, p<.001), parathyroid hormone (U=99.50, p<.001) and calcium (U=250.50, p<.001) levels were significantly increased in the experimental group after the intervention. The experimental group showed significantly increased scores of muscle mass, strength, physical balance, and gait compared to those of the control group.


Vitamin D supplementation improved physiological indices, muscle mass, and physical functions. In addition, this program may help to prevent disorders of the musculoskeletal system in aged women.

Figures and Tables

Table 1

Contents of Exercise Program

Table 2

Homogeneity test of General Characteristics (N=65)


Exp.=experimental group; Cont.=control group.

Table 3

Homogeneity test of Vit D related Characteristics (N=65)


Exp.=experimental group; Cont.=control group; 25 (OH)D=25-hydroxyvitamin D; PTH=parathyroid hormone.

Table 4

Differences in Physiological Indices and Muscle Mass between Experimental and Control Groups (N=65)


Exp.=experimental group; Cont.=control group; 25 (OH)D=25-hydroxyvitamin D; PTH=parathyroid hormone.

Table 5

Differences in Physical Functions between Experimental and Control Groups (N=65)


Exp.=experimental group; Cont.=control group.


This article is based on a part of the first author's doctoral thesis from Ewha womans University.


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