TY - JOUR
T1 - Hypovitaminosis D is associated with a reduction in upper and lower limb muscle strength and physical performance in post-menopausal women
T2 - a retrospective study
AU - Iolascon, Giovanni
AU - de Sire, Alessandro
AU - Calafiore, Dario
AU - Moretti, Antimo
AU - Gimigliano, Raffaele
AU - Gimigliano, Francesca
N1 - Publisher Copyright:
© 2015, Springer International Publishing Switzerland.
PY - 2015/10/26
Y1 - 2015/10/26
N2 - Background: Elderly people experience a gradual loss of muscle strength and a reduction of serum levels of vitamin D and of vitamin D receptor expression in skeletal muscle cells. Aims: The aim of our study was to evaluate the association among serum levels of 25-hydroxy-vitamin D [25(OH)D3], muscle strength, and physical performance in post-menopausal women. Methods: In our retrospective case–control study, we analyzed data from medical records of post-menopausal women aged ≥50 years. We compared subjects with hypovitaminosis D [25(OH)D3 <30 ng/ml] vs. those with normal levels [25(OH)D3 ≥30 ng/ml]. Outcome measures were: Hand Grip Strength Test (HGS) and Knee Extension Strength Test (KES) to evaluate upper and lower limb muscle strength, respectively; Short Physical Performance Battery (SPPB) and usual 4-m gait speed (4MGS) to evaluate physical performance. Results: We examined 80 patients (mean aged 65.92 ± 7.69 years): forty-six subjects with hypovitaminosis D (mean aged 66.09 ± 7.71 years) and 34 with normal levels of vitamin D (mean aged 65.71 ± 7.78 years). There was a statistically significant difference between hypovitaminosis D group and subjects with normal levels of vitamin D in HGS (12.13 ± 4.34 vs. 19.14 ± 5.59; p < 0.001), KES (11.99 ± 4.04 vs. 16.98 ± 8.43; p = 0.003), SPPB score [8 (5.75-10.25) vs. 12 (10-12); p < 0.001], and proportion of patients with usual 4MGS ≤ 0.8 m/s [29 (63.0 %) vs. 9 (26.5 %); p = 0.002]. Discussion: In literature, there is no agreement on the association among serum vitamin D levels and muscle function. Our data showed that post-menopausal women with hypovitaminosis D had worse upper and lower limb muscle strength and physical performance than subjects with normal levels of 25(OH)D3. Conclusions: Our results support the hypothesis that there is a significant positive association among serum 25(OH)D3 levels and upper and lower limb muscle functioning.
AB - Background: Elderly people experience a gradual loss of muscle strength and a reduction of serum levels of vitamin D and of vitamin D receptor expression in skeletal muscle cells. Aims: The aim of our study was to evaluate the association among serum levels of 25-hydroxy-vitamin D [25(OH)D3], muscle strength, and physical performance in post-menopausal women. Methods: In our retrospective case–control study, we analyzed data from medical records of post-menopausal women aged ≥50 years. We compared subjects with hypovitaminosis D [25(OH)D3 <30 ng/ml] vs. those with normal levels [25(OH)D3 ≥30 ng/ml]. Outcome measures were: Hand Grip Strength Test (HGS) and Knee Extension Strength Test (KES) to evaluate upper and lower limb muscle strength, respectively; Short Physical Performance Battery (SPPB) and usual 4-m gait speed (4MGS) to evaluate physical performance. Results: We examined 80 patients (mean aged 65.92 ± 7.69 years): forty-six subjects with hypovitaminosis D (mean aged 66.09 ± 7.71 years) and 34 with normal levels of vitamin D (mean aged 65.71 ± 7.78 years). There was a statistically significant difference between hypovitaminosis D group and subjects with normal levels of vitamin D in HGS (12.13 ± 4.34 vs. 19.14 ± 5.59; p < 0.001), KES (11.99 ± 4.04 vs. 16.98 ± 8.43; p = 0.003), SPPB score [8 (5.75-10.25) vs. 12 (10-12); p < 0.001], and proportion of patients with usual 4MGS ≤ 0.8 m/s [29 (63.0 %) vs. 9 (26.5 %); p = 0.002]. Discussion: In literature, there is no agreement on the association among serum vitamin D levels and muscle function. Our data showed that post-menopausal women with hypovitaminosis D had worse upper and lower limb muscle strength and physical performance than subjects with normal levels of 25(OH)D3. Conclusions: Our results support the hypothesis that there is a significant positive association among serum 25(OH)D3 levels and upper and lower limb muscle functioning.
KW - Hypovitaminosis D
KW - Muscle strength
KW - Physical performance
KW - Skeletal muscle
KW - Vitamin D
UR - http://www.scopus.com/inward/record.url?scp=84942244871&partnerID=8YFLogxK
U2 - 10.1007/s40520-015-0405-5
DO - 10.1007/s40520-015-0405-5
M3 - Article
SN - 1594-0667
VL - 27
SP - 23
EP - 30
JO - Aging clinical and experimental research
JF - Aging clinical and experimental research
ER -