ArticlePilot and feasibility studies2022
Feasibility and preliminary effects of exercise interventions on plasma biomarkers of Alzheimer's disease in the FIT-AD trial: a randomized pilot study in older adults with Alzheimer's dementia.
Article in Pilot and feasibility studies, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 11 papers, 3 of them syntheses 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.
Aerobic Exercise in Alzheimer's Disease: Cognition and Hippocampal Volume Effects
Precision Medicine in Alzheimer's Disease: A SMART Trial of Adaptive Exercises and Their Mechanisms of Action Using AT(N) Biomarkers to Optimize Aerobic-Fitness Responses (The FIT-AD SMART Trial)
Who cites it
11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 16 citations in OpenAlex.
- Plasma Biomarkers for Alzheimer's Disease Across the Continuum: A Systematic Review of SIMOA-Based Studies.Cellular and molecular neurobiology · 2026Pooled it
- Pooled it
- Systematic review and meta-analysis of randomized controlled trials on the effects of exercise interventions on amyloid beta levels in humans.Experimental brain research · 2024Pooled it
- The impact of exercise on blood-based biomarkers of Alzheimer's disease in cognitively unimpaired older adults.GeroScience · 2024Trial
- Prospective study on physical activity and Alzheimer's disease-related biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Lifestyle factors and plasma biomarkers of Alzheimer's disease: A narrative review.The journal of prevention of Alzheimer's disease · 2025Review
- Exercise to Counteract Alzheimer's Disease: What Do Fluid Biomarkers Say?International journal of molecular sciences · 2024Review
- Does Physical Exercise Modify the Pathophysiology of Alzheimer's Disease in Older Persons?JAR life · 2024Review
- Editorial: The impact of physical activity on white matter during healthy aging.Frontiers in aging neuroscience · 2023Article
- Physical activity and blood-based biomarkers of neurodegeneration in community dwelling Australians from ISLAND (Island Study Linking Ageing and Neurodegenerative Disease).Alzheimer's & dementia (Amsterdam, Netherlands)Article
- The impact of estimated cardiorespiratory fitness on Alzheimer's disease biomarkers and their relationships with cognitive decline.Alzheimer's & dementia (New York, N. Y.)Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 5 institutions in 1 country.
Funding
Abstract
backgroundAlzheimer's disease (AD) biomarkers have provided a unique opportunity to understand AD pathogenesis and monitor treatment responses. However, exercise trials show mixed effects on imagining and cerebrospinal fluid biomarkers of AD. The feasibility and effects of exercise on plasma biomarkers remain unknown. The primary objective of this study was to examine the feasibility of recruitment, retention, and blood sample collection in community-dwelling older adults with mild-to-moderate AD dementia. Secondarily, it estimated the preliminary effects of 6-month aerobic and stretching exercise on plasma amyloid-β
methodsThis pilot study was implemented in year 2 of the 2-parallel group FIT-AD trial that randomized 96 participants on a 2:1 allocation ratio to moderate-intensity cycling or low-intensity stretching for 20-50 min, 3 times/week for 6 months with 6-month follow-up. Investigators (except for the statistician) and data collectors were blinded to group assignment. Fasting blood samples were collected from 26 participants at baseline and 3 and 6 months. Plasma Aβ RESULTSS: The sample averaged 77.6±6.99 years old and 15.4±3.00 years of education with 65% being male and 96.2% being apolipoprotein epsilon 4 gene carriers. The recruitment rate was 76.5%. The retention rate was 100% at 3 months and 96.2% at 6 months. The rate of blood collection was 88.5% at 3 months and 96.2% at 6 months. Means (standard deviation) of within-group 6-month difference in the stretching and cycling group were 0.001 (0.012) and -0.001 (0.010) for Aβ
conclusionsBlood collections with fasting were well received by participants and feasible with high recruitment and retention rates. Plasma biomarkers of AD may be modifiable by exercise intervention. Important design considerations are provided for future Phase III trials. TRIALS REGISTRATION: ClinicalTrials.gov Identifier: NCT01954550 and posted on October 1, 2013.
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What OpenQuestion holds
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 OpenQuestion graph.