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The age-related increase in falls is strongly associated with a decline in muscle strength by the mechanism of sarcopenia. There has been great interest in developing approaches to counteract the effects of sarcopenia, and thereby reduce the age-related decline in muscle mass with vitamin D that have muscular effect. However, a limited number of studies demonstrate a vitamin D analog (alfacalcidol) increase in lower body muscle strength in adults with vitamin D deficiency. A double-blinded randomized controlled trial was conducted in order to determine the effect of alfacalcidol on the upper-body muscle strength in Indonesian elderly women in age group of 60 or more who had low handgrip strength.
A total 122 elderly women were enrolled to this study. It was determined subjects with handgrip strength less than 22 kg and measured using handheld dynamometer. There were 95 subjects fulfilled the eligible criteria. These subjects were randomized into two groups, one group of 47 subjects received alfacalcidol 0.5 mcg/day and the other group received placebo. Each subject was given calcium 500 mg/day. After 12 weeks of intervention, 88 subjects had the second muscle strength measurement (7 dropped out).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| white rice flour capsule | Placebo Comparator | One group of 47 subjects received alfacalcidol 0.5 mcg/day and the other group received placebo for 12 weeks | |
| alfacalcidol | Active Comparator | One group of 47 subjects received alfacalcidol 0.5 mcg/day and the other group received placebo |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| alfacalcidol | Drug | One group of 47 subjects received alfacalcidol 0.5 mcg/day and the other group received placebo |
|
| Measure | Description | Time Frame |
|---|---|---|
| Improvement of muscle strength in the group that received alfacalcidol compared to placebo | After 12 weeks of intervention, 88 subjects had the second muscle strength measurement | 12 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Iin Anugrahini | Internal of Medicine, University of Indonesia | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Division of Geriatrics, Department of Internal Medicine, University of Indonesia | Jakarta Pusat | Jakarta Special Capital Region | 10430 | Indonesia |
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| ID | Term |
|---|---|
| D018908 | Muscle Weakness |
| D055948 | Sarcopenia |
| ID | Term |
|---|---|
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D020879 | Neuromuscular Manifestations |
| D009461 | Neurologic Manifestations |
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| ID | Term |
|---|---|
| C008088 | alfacalcidol |
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| D009422 | Nervous System Diseases |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012816 | Signs and Symptoms |
| D009133 | Muscular Atrophy |
| D001284 | Atrophy |
| D020763 | Pathological Conditions, Anatomical |