Evidence map›Paper›PMID 25233078›Full record

Observational studyPloS one2014

Pulmonary and cardiac function in asymptomatic obese subjects and changes following a structured weight reduction program: a prospective observational study.

Matthias Held, Maria Mittnacht, Martin Kolb, Sabine Karl, Berthold Jany

Registry-linked trialOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03621098 (EMPOWER-PULM), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 25% of its field
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.

NCT03621098 completednot on this mapstarted 2016, after this paper: background citation

EMPOWER-PULM (PULMonary Outcomes in Older Adults Empowered With Movement to Prevent Obesity and Weight Regain)

TypeobservationalSponsorWake Forest University Health SciencesRan2016 to 2018Enrolled76ConditionsObesity, Pulmonary Disease, Dyspnea
3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Characterization of Ventilatory Drive in Community-Dwelling Adults with Chronic Spinal Cord Injury.Archives of rehabilitation research and clinical translation · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Lung function and left ventricular hypertrophy in morbidly obese candidates for bariatric surgery.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
    Article
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

5 authors at 3 institutions in 2 countries.

Matthias HeldMedical Mission Hospital, Academic Teaching Hospital, Julius Maximilian University of Würzburg, Department of Internal Medicine, Würzburg, Germany.
Maria MittnachtMedical Mission Hospital, Academic Teaching Hospital, Julius Maximilian University of Würzburg, Department of Internal Medicine, Würzburg, Germany.
Martin KolbFirestone Institute for Respiratory Health, Department of Medicine, Pathology & Molecular Medicine, McMaster University, Hamilton, ON, Canada.
Sabine KarlInstitute of Mathematics, Julius Maximilian University of Würzburg, Würzburg, Germany.
Berthold JanyMedical Mission Hospital, Academic Teaching Hospital, Julius Maximilian University of Würzburg, Department of Internal Medicine, Würzburg, Germany.
University of Würzburg · DEMcMaster University · CAMedical Mission Institute · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prevalence of obesity is rising. Obesity can lead to cardiovascular and ventilatory complications through multiple mechanisms. Cardiac and pulmonary function in asymptomatic subjects and the effect of structured dietary programs on cardiac and pulmonary function is unclear.

objectiveTo determine lung and cardiac function in asymptomatic obese adults and to evaluate whether weight loss positively affects functional parameters.

methodsWe prospectively evaluated bodyplethysmographic and echocardiographic data in asymptomatic subjects undergoing a structured one-year weight reduction program.

results74 subjects (32 male, 42 female; mean age 42±12 years) with an average BMI 42.5±7.9, body weight 123.7±24.9 kg were enrolled. Body weight correlated negatively with vital capacity (R = -0.42, p<0.001), FEV1 (R = -0.497, p<0.001) and positively with P 0.1 (R = 0.32, p = 0.02) and myocardial mass (R = 0.419, p = 0.002). After 4 months the study subjects had significantly reduced their body weight (-26.0±11.8 kg) and BMI (-8.9±3.8) associated with a significant improvement of lung function (absolute changes: vital capacity +5.5±7.5% pred., p<0.001; FEV1+9.8±8.3% pred., p<0.001, ITGV+16.4±16.0% pred., p<0.001, SR tot -17.4±41.5% pred., p<0.01). Moreover, P0.1/Pimax decreased to 47.7% (p<0.01) indicating a decreased respiratory load. The change of FEV1 correlated significantly with the change of body weight (R = -0.31, p = 0.03). Echocardiography demonstrated reduced myocardial wall thickness (-0.08±0.2 cm, p = 0.02) and improved left ventricular myocardial performance index (-0.16±0.35, p = 0.02). Mitral annular plane systolic excursion (+0.14, p = 0.03) and pulmonary outflow acceleration time (AT +26.65±41.3 ms, p = 0.001) increased.

conclusionEven in asymptomatic individuals obesity is associated with abnormalities in pulmonary and cardiac function and increased myocardial mass. All the abnormalities can be reversed by a weight reduction program.

Indexed as

AdultBody Mass IndexEchocardiographyElectric ImpedanceFemaleHumansMaleObesityPeak Expiratory Flow RatePlethysmography, Whole BodyProspective StudiesRespiratory Function TestsVentricular Function, LeftVital CapacityWeight LossWeight Reduction Programs

Identifiers

PMID25233078
PMCPMC4169401
OpenAlexW1982702045

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.