The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study
Background: The aim of this study was to evaluate the effect of weekly vitamin D3 supplementation on metabolic parameters and muscle strength of postmenopausal women with type 2 diabetes. Methods: A total of 38 patients with serum 25-hydroxy vitamin D [25(OH)D] below 30 ng/ml and hand strength below...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2015-08-01
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| Series: | Therapeutic Advances in Endocrinology and Metabolism |
| Online Access: | https://doi.org/10.1177/2042018815578998 |
| _version_ | 1818967111822737408 |
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| author | Roseane Cavalcante Juliana Maia Patrícia Mesquita Rafael Henrique Luiz Griz Maria P. Bandeira Francisco Bandeira |
| author_facet | Roseane Cavalcante Juliana Maia Patrícia Mesquita Rafael Henrique Luiz Griz Maria P. Bandeira Francisco Bandeira |
| author_sort | Roseane Cavalcante |
| collection | DOAJ |
| description | Background: The aim of this study was to evaluate the effect of weekly vitamin D3 supplementation on metabolic parameters and muscle strength of postmenopausal women with type 2 diabetes. Methods: A total of 38 patients with serum 25-hydroxy vitamin D [25(OH)D] below 30 ng/ml and hand strength below 20 kg were randomly assigned to oral vitamin D3 (6600 IU/week in 2 cc oil preparation) or 2 cc olive oil weekly for 3 months. Results: There were nonsignificant increases in serum 25(OH)D in the intervention group to 22.98 ± 4.23 ng/ml and nonsignificant decreases in the control group to 22.84 ± 3.88 (26% of the intervention and 48% of the control groups had 25(OH)D < 20 ng/ml). Handgrip strength improved significantly in the intervention group (right arm 17.4 ± 2.68 to 19.9 ± 3.53 kg, p = 0.002; left arm 16.31 ± 2.6 to 18.46 ± 3.2 kg, p < 0.001) but not in the control group (right arm 16.87 ± 3.99 to 17.93 ± 4.91 kg, p = 0.1; left arm 16.13 ± 4.29 to 16.86 ± 4.79 kg, p < 0.2). More patients in the control group became obese at the end of the study period ( p = 0.014). There were no significant changes in mean fasting glucose, glycated haemoglobin (HbA1c), serum triglycerides and blood pressure with vitamin D supplementation. Systolic blood pressure increased significantly in the control group from 136.6 ± 18.6 to 141.4 ± 17.6 mmHg, p = 0.04). Conclusions: Vitamin D3 supplementation in doses equivalent to 942 IU/day improved isometric handgrip strength, but had no effect on glycaemic control in postmenopausal women with longstanding type 2 diabetes. |
| first_indexed | 2024-12-20T13:43:36Z |
| format | Article |
| id | doaj.art-c931d25806bf4b09942971e653cda1dd |
| institution | Directory Open Access Journal |
| issn | 2042-0188 2042-0196 |
| language | English |
| last_indexed | 2024-12-20T13:43:36Z |
| publishDate | 2015-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Therapeutic Advances in Endocrinology and Metabolism |
| spelling | doaj.art-c931d25806bf4b09942971e653cda1dd2022-12-21T19:38:44ZengSAGE PublishingTherapeutic Advances in Endocrinology and Metabolism2042-01882042-01962015-08-01610.1177/2042018815578998The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled studyRoseane CavalcanteJuliana MaiaPatrícia MesquitaRafael HenriqueLuiz GrizMaria P. BandeiraFrancisco BandeiraBackground: The aim of this study was to evaluate the effect of weekly vitamin D3 supplementation on metabolic parameters and muscle strength of postmenopausal women with type 2 diabetes. Methods: A total of 38 patients with serum 25-hydroxy vitamin D [25(OH)D] below 30 ng/ml and hand strength below 20 kg were randomly assigned to oral vitamin D3 (6600 IU/week in 2 cc oil preparation) or 2 cc olive oil weekly for 3 months. Results: There were nonsignificant increases in serum 25(OH)D in the intervention group to 22.98 ± 4.23 ng/ml and nonsignificant decreases in the control group to 22.84 ± 3.88 (26% of the intervention and 48% of the control groups had 25(OH)D < 20 ng/ml). Handgrip strength improved significantly in the intervention group (right arm 17.4 ± 2.68 to 19.9 ± 3.53 kg, p = 0.002; left arm 16.31 ± 2.6 to 18.46 ± 3.2 kg, p < 0.001) but not in the control group (right arm 16.87 ± 3.99 to 17.93 ± 4.91 kg, p = 0.1; left arm 16.13 ± 4.29 to 16.86 ± 4.79 kg, p < 0.2). More patients in the control group became obese at the end of the study period ( p = 0.014). There were no significant changes in mean fasting glucose, glycated haemoglobin (HbA1c), serum triglycerides and blood pressure with vitamin D supplementation. Systolic blood pressure increased significantly in the control group from 136.6 ± 18.6 to 141.4 ± 17.6 mmHg, p = 0.04). Conclusions: Vitamin D3 supplementation in doses equivalent to 942 IU/day improved isometric handgrip strength, but had no effect on glycaemic control in postmenopausal women with longstanding type 2 diabetes.https://doi.org/10.1177/2042018815578998 |
| spellingShingle | Roseane Cavalcante Juliana Maia Patrícia Mesquita Rafael Henrique Luiz Griz Maria P. Bandeira Francisco Bandeira The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study Therapeutic Advances in Endocrinology and Metabolism |
| title | The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study |
| title_full | The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study |
| title_fullStr | The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study |
| title_full_unstemmed | The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study |
| title_short | The effects of intermittent vitamin D3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes: a randomized controlled study |
| title_sort | effects of intermittent vitamin d3 supplementation on muscle strength and metabolic parameters in postmenopausal women with type 2 diabetes a randomized controlled study |
| url | https://doi.org/10.1177/2042018815578998 |
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