ArticleJournal of vascular diseases2023
Aerobic Exercise, Training Dose, and Cardiorespiratory Fitness: Effects and Relationships with Resting Plasma Neurotrophic Factors in Alzheimer's Dementia.
Article in Journal of vascular diseases, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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.
- Immediate and Long-Term Effectiveness of a Therapeutic Exercise Protocol in Patients with Dementia.Journal of clinical medicine · 2026Article
- Exercise-conditioned extracellular vesicles in Alzheimer's disease: a multi-organ signaling network linking peripheral adaptation to brain pathology.Frontiers in immunology · 2026Review
- Clarifying blood-based brain-derived neurotrophic factor measurement in Alzheimer's disease research: A call for pre-analytic standardization.Journal of Alzheimer's disease reportsArticle
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Background: Vascular health is increasingly recognized for its roles in the pathogenesis and progression of Alzheimer's disease (AD). The objective of this study was to investigate effects of exercise training, dose, and cardiorespiratory fitness (CRF) on neurotrophic factors in community-dwelling, older adults with mild-to-moderate AD dementia. Methods: This was a pilot blood ancillary study of the FIT-AD trial. Participants in the parent study were randomized to 6-month aerobic exercise (AEx) or stretching control. For this ancillary study, resting plasma brain-derived neurotrophic factor (BDNF), irisin, fibroblast growth factor-21 (FGF-21), and insulin-like growth factor-1 (IGF-1) biomarkers were assessed at baseline, 3, and 6 months. Estimates of within- and between-group effect sizes were calculated (Cohen's d). Relationships of biomarker change with dose and CRF change were explored with multivariable linear regression and repeated measures correlations. Results: The sample (n = 26, 18 AEx/8 stretching) averaged 77.6 ± 6.9 years old, with the majority being male (65.4%), and non-Hispanic White (92.3%); between-group effect sizes were generally small except for irisin (d = -0.44)), AEx group relative to stretching group. Associations of dose and changes in CRF with changes in neurotrophic biomarker were weak (r Conclusions: The effects of exercise on BDNF, irisin, IGF-1, and FGF-21 were heterogeneous in AD. Our findings need validation in future, adequately powered exercise studies in AD.
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Registered trials
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