A registered study indexed because it matched monitored longevity research terms. Registry status: Completed. Registration does not establish safety or effectiveness.
What the source actually supports
- Evidence stage
- Phase not reported
- Study design
- RANDOMIZED · PARALLEL · PREVENTION · DOUBLE
- Evidence population
- Human clinical study registration
- Participants
- 136
- Population
- ALL · 65 Years to 89 Years
- Duration
- 2013-12-01 to 2018-09-26
- Intervention
- Vitamin D; Placebo
- Comparator
- Placebo
- Outcomes measured
- Change in Lower Extremity Muscle Power Over 12 Months — change from baseline at 12 month follow-up reported; Change in Percentage of Type II (Fast-twitch) Muscle Fibers Over 4 Months — over 4 months of follow-up; Change in Lower Extremity Muscle Strength Over 12 Months — change from baseline at 12 month follow-up reported; Change in the Short Physical Performance Battery (SPPB) Score Over 12 Months — change from baseline at 12 month follow-…; Change in the Expanded Physical Performance Battery Score Over 12 Months — change from baseline at 12 month follow-up r…; Change in Timed Up and Go (TUG) Over 12 Months — change from baseline at 12 month follow-up reported; Change in Average Sway Velocity Over 12 Months — change from baseline at 12 month follow-up reported; Change in 95% Confidence Ellipse Area Over 12 Months — change from baseline at 12 month follow-up reported; Change in Maximum Anteroposterior (AP) Displacement Over 12 Months — change from baseline at 12 month follow-up reported; Change in Maximum Mediolateral (ML) Displacement Over 12 Months — change from baseline at 12 month follow-up reported
- Reported result
- No reusable finding-level result is available in this record.
Main limitationThis is a study registration. No reusable structured result is available here, so it cannot show whether the intervention worked or was safe.
Safety and approvalEligibility, adverse-event details, and clinical decisions must be checked in the official registry and with qualified clinicians. Trial registration is not regulatory approval and does not establish that an intervention is available.
Source supportStructured registry protocol metadata; no finding-level conclusion is generated.
Registration and recruitment status do not establish safety, efficacy, or regulatory approval.
Why this record appears here · 100% topic match
The title, summary, or source keywords matched one or more topics followed by immortal.life. A higher percentage means a stronger topic match; it does not rate safety, effectiveness, or study quality.
- Vitamin D and ageing · 100%Title contains controlled topic terminology. Summary contains controlled topic terminology. Source terminology contains a controlled topic term. Title supplies ageing or longevity context.
Automated source check 100% · update recency 50%. These figures help sort records; they are not medical ratings.