Evidence map›Paper›PMID 17897465›Full record

Trial reportCardiovascular ultrasound2007

Exercise training does not improve myocardial diastolic tissue velocities in Type 2 diabetes.

Antti Loimaala, Kaj Groundstroem, Marjo Rinne, Arja Nenonen, Heini Huhtala, Ilkka Vuori

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cardiovascular ultrasound, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01053091 (Effect of Exercise-based Rehabilitation on Circulatory Functions in Patients With Diastolic Heart Failure), which is not on this map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
–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.

NCT01053091 nacompletednot on this mapstarted 2009, after this paper: background citation

Effect of Exercise-based Rehabilitation on Circulatory Functions in Patients With Diastolic Heart Failure

TypeinterventionalSponsorChang Gung Memorial HospitalRan2009 to 2013Enrolled120ConditionsHeart FailureArmsexercise
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
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

6 authors.

Antti LoimaalaClinical Physiology and Nuclear Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland. antti.loimaala@uta.fi
Kaj Groundstroem
Marjo Rinne
Arja Nenonen
Heini Huhtala
Ilkka Vuori

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMyocardial diastolic tissue velocities are reduced already in newly onset Type 2 diabetes mellitus (T2D). Poor disease control may lead to left ventricular (LV) systolic dysfunction and heart failure. The aim of this study was to assess the effects of exercise training on myocardial diastolic function in T2D patients without ischemic heart disease.

methods48 men (52.3 +/- 5.6 yrs) with T2D were randomized to supervised training four times a week and standard therapy (E), or standard treatment alone (C) for 12 months. Glycated hemoglobin (HbA1c), oxygen consumption (VO2max), and muscle strength (Sit-up) were measured. Tissue Doppler Imaging (TDI) was used to determine the average maximal mitral annular early (Ea) and late (Aa) diastolic as well as systolic (Sa) velocities, systolic strain (epsilon) and strain rate (epsilon) from the septum, and an estimation of left ventricular end diastolic pressure (E/Ea).

resultsExercise capacity (VO2max, E 32.0 to 34.7 vs. C 32.6 to 31.5 ml/kg/min, p = .001), muscle strength (E 12.7 to 18.3 times vs. C 14.6 to 14.7 times, p < .001), and HbA1c (E 8.2 to 7.5% vs. C 8.0 to 8.4%, p = .006) improved significantly in the exercise group compared to the controls (ANOVA). Systolic blood pressure decreased in the E group (E 144 to 138 mmHg vs. C 146 to 144 mmHg, p = .04). Contrary to risk factor changes diastolic long axis relaxation did not improve significantly, early diastolic velocity Ea from 8.1 to 7.9 cm/s for the E group vs. C 7.4 to 7.8 cm/s (p = .85, ANOVA). Likewise, after 12 months the mitral annular systolic velocity, systolic strain and strain rate, as well as E/Ea were unchanged.

conclusionExercise training improves endurance and muscle fitness in T2D, resulting in better glycemic control and reduced blood pressure. However, myocardial diastolic tissue velocities did not change significantly. Our data suggest that a much longer exercise intervention may be needed in order to reverse diastolic impairment in diabetics, if at all possible.

Indexed as

Exercise TherapyAnalysis of VarianceDiabetes Mellitus, Type 2DiastoleEchocardiography, DopplerHumansMaleMiddle AgedMyocardial ContractionRisk FactorsTreatment Outcome

Identifiers

PMID17897465
PMCPMC2094704

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.