Evidence map›Paper›PMID 32354448›Full record

ArticleHeart rhythm2020

Physical activity and atrial fibrillation: Data from wearable fitness trackers.

Sarah Semaan, Thomas A Dewland, Geoffrey H Tison, Gregory Nah, Eric Vittinghoff, Mark J Pletcher, Jeffrey E Olgin, Gregory M Marcus

Abstract read
In one paragraph

Article in Heart rhythm, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Article
  2. Physical activity and risk of adverse events in atrial fibrillation: evidence from European and Asian cohorts.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Sarah SemaanDepartment of Medicine, Division of Cardiology, Electrophysiology Section, University of California, San Francisco, San Francisco, California.
Thomas A DewlandKnight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon.
Geoffrey H TisonDepartment of Medicine, Division of Cardiology, Electrophysiology Section, University of California, San Francisco, San Francisco, California.
Gregory NahDepartment of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California.
Eric VittinghoffDepartment of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California.
Mark J PletcherDepartment of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California.
Jeffrey E OlginDepartment of Medicine, Division of Cardiology, Electrophysiology Section, University of California, San Francisco, San Francisco, California.
Gregory M MarcusDepartment of Medicine, Division of Cardiology, Electrophysiology Section, University of California, San Francisco, San Francisco, California. Electronic address: marcusg@medicine.ucsf.edu.

Funding

The Health ePeople Resource for Mobilized ResearchU2CEB021881 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MARCUS, GREGORY M, OLGIN, JEFFREY E · 2015 to 2020
$10.3M
NIBIB NIH HHS U2C EB021881
6 · The paper itself

Abstract

backgroundRegular physical activity is an important determinant of cardiovascular health and quality of life. Previous investigations examining the association between exercise and atrial fibrillation (AF) have been limited by self-reported, retrospectively collected activity data.

objectiveThe purpose of this study was to objectively quantify differences in daily physical activity among individuals with and those without AF using electronic wearable activity trackers.

methodsDaily exercise data were directly obtained from wrist-worn activity trackers (Fitbit, San Francisco, CA) among participants in the Health eHeart (HeH) study. Average daily step count was compared between individuals with and those without AF both before and after adjusting for comorbidities. AF severity was quantified using the Atrial Fibrillation Effect on QualiTy of Life (AFEQT) survey.

resultsAmong 171,284 HeH study participants, 3333 individuals (234 with AF [7%]) submitted activity data. In unadjusted analysis, AF participants ambulated an average of 723 fewer steps per day (95% confidence interval [CI] 292-1154; P = .001) compared to individuals without AF. After adjustment for demographics and comorbid diseases, participants with AF demonstrated 591 fewer steps per day (95% CI 149-1033; P = .009). Among AF patients, AF severity was associated with less physical activity. For each single point decrease in AFEQT score (corresponding to more symptomatic AF), physical activity decreased by a mean 24 steps per day (95% CI 1-46; P = .04).

conclusionObjective, automatically collected step count data demonstrate that individuals with AF engage in significantly less average daily physical activity. In addition, worsening AF symptom severity is associated with reduced daily exercise.

Indexed as

Quality of LifeAccelerometryAtrial FibrillationEquipment DesignExerciseFemaleFitness TrackersFollow-Up StudiesHumansMaleMiddle AgedRetrospective StudiesSurveys and QuestionnairesAtrial fibrillationExerciseFitness trackerPhysical activityStep count

Identifiers

PMID32354448
PMCPMC8580729

What OpenQuestion holds

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Registered trials

None linked

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.