Evidence map›Paper›PMID 40916939›Full record

ArticleChronobiology international2025

Light exposure impact on cardiac autonomic control before and following exercise.

Thais C Marin, Gustavo F Oliveira, Luan M Azevêdo, Tiago Peçanha, Saurabh S Thosar, José Cipolla-Neto, Cláudia L M Forjaz, Leandro C Brito

Abstract read
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In one paragraph

Article in Chronobiology international, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Thais C MarinExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Gustavo F OliveiraExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Luan M AzevêdoExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Tiago PeçanhaDepartment of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, Manchester Metropolitan University, Manchester, UK.
Saurabh S ThosarOregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, Oregon, USA.
José Cipolla-NetoNeurobiology Laboratory, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil.
Cláudia L M ForjazExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
Leandro C BritoExercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.ORCID 0000-0001-9902-7390

Funding

Sleep and circadian mechanisms in hypertensionR01HL163232 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Saurabh Suhas Thosar · 2022 to 2026
$2.9M
American Heart Association-American Stroke Association 24CDA1267757NHLBI NIH HHS R01 HL163232
6 · The paper itself

Abstract

We aimed to investigate whether bright light (BL) exposure affects sympathovagal activity in controlling heart rate (HR) before and after exercise. Eighteen healthy men (28 ± 4 years) underwent two experimental conditions: one under BL (5000 lux) and another under dim light (DL < 8 lux). In both conditions, subjects performed an aerobic exercise bout (cycle ergometer, 30 min at 50-60% of HRreserve). HR (electrocardiography) and respiratory rate (piezoelectric belt) were initially assessed at baseline light (500 lux). Measurements were repeated before and 10 min after the exercise in both light conditions, BL and DL. Cardiac autonomic modulation was evaluated using spectral analysis of HR variability. Before exercise, DL did not change HR but decreased low- to high-frequency ratio of HR variability (LF/HF

Indexed as

Autonomic Nervous SystemExerciseHeartHeart RateLightAdultCircadian RhythmElectrocardiographyHumansMaleRespiratory RateYoung Adultaerobic exerciseAutonomic nervous systemheart rateheart rate variabilitylight

Identifiers

PMID40916939
PMCPMC12967282

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

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 Socratic graph.