Evidence map›Paper›PMID 29898704›Full record

Trial reportBMC pulmonary medicine2018

Acute effects of combined exercise and oscillatory positive expiratory pressure therapy on sputum properties and lung diffusing capacity in cystic fibrosis: a randomized, controlled, crossover trial.

Thomas Radtke, Lukas Böni, Peter Bohnacker, Marion Maggi-Beba, Peter Fischer, Susi Kriemler, Christian Benden, Holger Dressel

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC pulmonary medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02750722 (Acute Effects of Combined Exercise and Oscillatory Positive Expiratory Pressure Therapy on Sputum Properties and Lung Diffusion Capacity in Cystic Fibrosis), which is not on this map. Cited by 12 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 5 pooled it
1.8field-weighted citation impact, top 14% 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.

NCT02750722 nacompletednot on this map

Acute Effects of Combined Exercise and Oscillatory Positive Expiratory Pressure Therapy on Sputum Properties and Lung Diffusion Capacity in Cystic Fibrosis: a Randomized Crossover Trial

TypeinterventionalSponsorUniversity of ZurichRan2016 to 2017Enrolled16ConditionsCystic FibrosisArmsFlutter®, No Flutter®
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 5 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Physical activity and exercise training in cystic fibrosis.The Cochrane database of systematic reviews · 2022
    Pooled it
  2. Exercise versus airway clearance techniques for people with cystic fibrosis.The Cochrane database of systematic reviews · 2022
    Pooled it
  3. Oscillating devices for airway clearance in people with cystic fibrosis.The Cochrane database of systematic reviews · 2020
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Pulmonary diffusing capacity for nitric oxide in disease: a scoping review.European respiratory review : an official journal of the European Respiratory Society · 2026
    Article
  8. Sputum handling for rheology.Scientific reports · 2023
    Article
  9. Article
  10. Article
  11. Review
  12. 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

8 authors at 3 institutions in 1 country.

Thomas RadtkeEpidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland. thomas.radtke@uzh.ch.
Lukas BöniDepartment of Health Science and Technology, ETH Zurich, Zurich, Switzerland.
Peter BohnackerDepartment of Health Science and Technology, ETH Zurich, Zurich, Switzerland.
Marion Maggi-BebaDivision of Occupational and Environmental Medicine, University of Zurich and University Hospital Zurich, Zurich, Switzerland.
Peter FischerDepartment of Health Science and Technology, ETH Zurich, Zurich, Switzerland.
Susi KriemlerEpidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland.
Christian BendenDivision of Pulmonology, University Hospital of Zurich, Zurich, Switzerland.
Holger DresselDivision of Occupational and Environmental Medicine, University of Zurich and University Hospital Zurich, Zurich, Switzerland.
ETH Zurich · CHUniversity of Zurich · CHUniversity Hospital of Zurich · CH

Funding

Swiss Society for Cystic Fibrosis not applicable
6 · The paper itself

Abstract

backgroundRegular airway clearance by chest physiotherapy and/or exercise is critical to lung health in cystic fibrosis (CF). Combination of cycling exercise and chest physiotherapy using the Flutter® device on sputum properties has not yet been investigated.

methodsThis prospective, randomized crossover study compared a single bout of continuous cycling exercise at moderate intensity (experiment A, control condition) vs a combination of interval cycling exercise plus Flutter® (experiment B). Sputum properties (viscoelasticity, yield stress, solids content, spinnability, and ease of sputum expectoration), pulmonary diffusing capacity for nitric oxide (DLNO) and carbon monoxide (DLCO) were assessed at rest, directly and 45 min post-exercise (recovery) at 2 consecutive visits. Primary outcome was change in sputum viscoelasticity (G', storage modulus; G", loss modulus) over a broad frequency range (0.1-100 rad.s

results15 adults with CF (FEV

conclusionsThe additional use of the Flutter® to moderate intensity interval cycling exercise has no measurable effect on the viscoelastic properties of sputum compared to moderate intensity continuous cycling alone. Elevations in diffusing capacity represent an acute exercise-induced effect not sustained post-exercise.

trial registrationClinicalTrials.gov; No.: NCT02750722 ; URL: clinical.trials.gov; Registration date: April 25th, 2016.

Indexed as

Chest Wall OscillationCystic FibrosisRespiratory TherapyAdultAirway ManagementCross-Over StudiesElasticityExercise TestExercise TherapyFemaleHumansMaleMucociliary ClearancePulmonary Diffusing CapacitySpirometrySputumAirway clearanceDiffusing capacity for nitric oxideExerciseLung diseaseMucusSputum viscoelasticity

Identifiers

PMID29898704
PMCPMC6000950
OpenAlexW2807946705

What Socratic 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 Socratic graph.