{"type":"trials","record":{"id":93389,"source_id":"clinicaltrials-gov","external_id":"NCT01252381","title":"Supplementary Intake of Vitamin D During 12 Weeks Strength Training in Younger and Older People","brief_summary":"The aim is to investigate the importance of vitamin D levels to achieve the effect of strength training. If we can show that vitamin D has an effect of training, the ultimate goal is to find out why and how vitamin D affects muscle. This would potentially have important implications for public health. Since a large number of populations, including elderly, are shown to have too little vitamin D and also has low muscle strength, it will be essential that these people added vitamin D in relation to training and rehabilitation.","overall_status":"Completed","phases":[],"study_type":"INTERVENTIONAL","sponsor":"Bispebjerg Hospital","enrollment":40,"countries":["Denmark"],"start_date":"2010-11-01","completion_date":"2013-01-01","last_update_date":"2017-07-05","source_url":"https://clinicaltrials.gov/study/NCT01252381","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Completed. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-25T05:35:08.159429+00:00","last_seen_at":"2026-09-25T05:35:07.553+00:00","metadata":{"sex":"MALE","acronym":null,"age_range":"20 Years to 75 Years","comparator":"Vitamin D; Calcium tablet","organization":"Bispebjerg Hospital","interventions":["12 weeks Strength exercise training"],"registry_source":"ClinicalTrials.gov","outcome_measures":["Cross-sectional area of thigh musculature and knee tendon — 12 weeks","VDR potential target CYP27b1 — 12 weeks"],"design_description":"RANDOMIZED · PARALLEL · OTHER · DOUBLE","source_has_results":false},"controlled_terms":["Muscle Strength","Tendon Elasticity","Muscle CSA","Tendon CSA","VDR Receptor","12 weeks Strength exercise training"],"relevance_confidence":100,"source_quality_score":100,"freshness_score":50,"publication_state":"published","match_explanation":"Title contains controlled term: strength training.","quality_checked_at":"2026-09-25T05:35:12.977559+00:00","duplicate_cluster_key":"id:nct01252381","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2010-11-01 to 2013-01-01","comparator":"Vitamin D; Calcium tablet","confidence":"structured-source","population":"MALE · 20 Years to 75 Years","provenance":{"duration":"start_date and completion_date","comparator":"registry arm fields","population":"registry eligibility fields","intervention":"registry intervention fields","participants":"enrollment","study_design":"study_type and registry design fields","evidence_stage":"phases","reported_outcome":"not available","outcomes_measured":"registry outcome-measure fields"},"generated_at":"2026-09-25T05:35:07.571Z","intervention":["12 weeks Strength exercise training"],"participants":40,"study_design":"RANDOMIZED · PARALLEL · OTHER · DOUBLE","subject_scope":"Human clinical study registration","evidence_stage":"Phase not reported","safety_context":"Eligibility, adverse-event details, and clinical decisions must be checked in the official registry and with qualified clinicians.","source_support":"Structured registry protocol metadata; no finding-level conclusion is generated.","main_limitation":"This is a study registration. No reusable structured result is available here, so it cannot show whether the intervention worked or was safe.","reported_outcome":null,"outcomes_measured":["Cross-sectional area of thigh musculature and knee tendon — 12 weeks","VDR potential target CYP27b1 — 12 weeks"],"regulatory_context":"Trial registration is not regulatory approval and does not establish that an intervention is available."},"clinical_trial_topics":[{"topic_slug":"resistance-training","is_published":true,"match_reasons":["Title contains controlled term: strength training.","Abstract contains controlled term: strength training.","Title supplies longevity context: older people.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["title","abstract","title context","study type"],"relevance_score":100,"intelligence_topics":{"name":"Resistance training","slug":"resistance-training"}}],"content_sources":{"name":"ClinicalTrials.gov","homepage_url":"https://clinicaltrials.gov/"}},"canonical_url":"https://www.immortal.life/trials/93389","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}