Trial reportDiabetes, obesity & metabolism2026
Metformin attenuates metabolic insulin sensitivity and insulin-stimulated carbohydrate oxidation after high-intensity exercise training in adults at risk for metabolic syndrome.
Trial report in Diabetes, obesity & metabolism, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The role of resistance training in improving beta-cell function in type 2 diabetes: a systematic review and meta-analysis.BMC endocrine disorders · 2026Pooled it
- Metformin Alters Exercise Training Induced Blood Pressure and Aortic Waveform Adaptations in Adults at Risk for Metabolic Syndrome.Journal of clinical hypertension (Greenwich, Conn.) · 2026Trial
- The effects of metformin and exercise training on cardiorespiratory, blood pressure, and metabolic adaptations across the spectrum of glucose dysregulation: a systematic review and meta-analysis.EClinicalMedicine · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
aimsMixed evidence exists on whether metformin adds to or attenuates the insulin-sensitising effects of exercise. To date, no studies have tested whether metformin differentially impacts exercise training intensity-mediated insulin sensitivity. We tested the hypothesis that metformin would blunt metabolic insulin sensitivity and carbohydrate oxidation in an intensity-based manner among adults with metabolic syndrome (MetS) risk. MATERIALS AND
methodsIn a double-blind, placebo-controlled trial, participants were randomised to low-intensity exercise plus placebo (~55% VO
resultsHiEx + PL increased metabolic insulin sensitivity (p = 0.017) while HiEx + Met, LoEx + PL, or LoEx + Met did not. HiEx + PL also raised insulin-stimulated carbohydrate oxidation and decreased fat oxidation compared with LoEx + Met (both, p = 0.008). Increased metabolic insulin sensitivity related to reductions in fasting glucose (r = -0.41, p = 0.025), VO
conclusionsMetformin attenuated metabolic insulin sensitivity and insulin-stimulated carbohydrate oxidation after high-intensity exercise training in adults at risk for MetS.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.