Evidence mapPaperPMID 40958128Full record

ArticleBMC sports science, medicine & rehabilitation2025

Optimizing cardiorespiratory fitness after bariatric surgery - highly effective with very low adherence: HIT BAR randomized controlled trial.

Alida Finze, Megan Duddek, Svetlana Hetjens, Erfan Ghanad, Christoph Reissfelder, Mirko Otto, Johanna Betzler, Christine Joisten, Susanne Blank

Abstract read
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

9 authors.

Alida FinzeDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany. alida.finze@umm.de.
Megan DuddekDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.
Svetlana HetjensDepartment of Medical Statistics, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Erfan GhanadDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.
Christoph ReissfelderDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.
Mirko OttoDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.
Johanna BetzlerDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.
Christine JoistenInstitute of Movement- und Neurosciences, German Sport University Cologne, 50933, Cologne, Germany.
Susanne BlankDepartment of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 60167, Mannheim, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCardiovascular disease and obesity-related comorbidities are key factors addressed by metabolic-bariatric surgery (MBS). Although High intensity interval training (HIIT) has been proven effective in healthy cohorts, limited evidence exists regarding HIIT and adherence towards HIIT after MBS. This study aims to test feasibility and cardiorespiratory effect of HIIT after MBS.

methods201 patients undergoing MBS were included in a four-week training protocol with 3 training groups (B-D) including different HIIT protocols on a bicycle designed for patients with obesity and one control group (A) at a university medical center in Germany. Ergometry with estimated VO2max, maximum blood lactate, maximum resistance, time spent on ergometer, and heart rate were performed prior to and after 4 weeks of training.

resultsA significant effect of the four-week training could be shown through reduction of heart rate at 100 W, increase of maximum blood lactate, and maximum resistance when comparing the training groups to the control group (Δ 9,67 BPM; Δ 1.02 mmol/l; Δ 12 W respectively, all p < 0.05) However, adherence of the recruited patient group was very low, shown by a notably high drop-out rate of 78.1% overall (44 patients completed training). The majority of patients dropped out prior to the first training session.

conclusionsHIIT bicycle training in post-MBS patients is possibly very effective, however, adherence is extremely low. Although this study shows promising results, an effect on large patient groups cannot be expected if improvement of adherence and a wide range of training methods are not addressed first. STUDY REGISTRATION: German Registry for Clinical Trials (DRKS) trial registration number DRKS00024939 on 20/09/2021.

Indexed as

Bariatric surgeryCardiorespiratory fitnessCardiovascular diseaseHigh intensity interval trainingRoux-en-Y gastric bypassSleeve gastrectomy

Identifiers

PMID40958128
PMCPMC12442301

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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.