NCT03191435

Brief Summary

In diabetic individuals, changes in ventilatory muscle strength and lung function have been demonstrated over the years. The onset and progression of chronic complications in diabetes should be avoided by reaching glycated hemoglobin (HbA1c) levels below 7%. The control of glycemia through the measurement of HbA1c is fundamental to avoid complications. The inspiratory muscle training has been used in several clinical situations, and may be an alternative for individuals with type 2 diabetes mellitus who have difficulties performing conventional exercises. The long-term effect of inspiratory muscle training on glycemic control has not been tested yet. The aim of this study is to evaluate the effects of inspiratory muscle training on glycemic control in individuals with type 2 diabetes.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable diabetes-mellitus-type-2

Timeline
Completed

Started Jul 2017

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 15, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 19, 2017

Completed
22 days until next milestone

Study Start

First participant enrolled

July 11, 2017

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2018

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2019

Completed
Last Updated

August 14, 2017

Status Verified

August 1, 2017

Enrollment Period

1.5 years

First QC Date

June 15, 2017

Last Update Submit

August 11, 2017

Conditions

Keywords

Diabetes mellitus, type 2Inspiratory muscle trainingGlycemic controlGlucoseExerciseDiaphragm exerciseInspiratory loading

Outcome Measures

Primary Outcomes (2)

  • Glycated hemoglobin in 8 weeks

    Glycated hemoglobin concentration after 8 weeks of inspiratory muscle training

    Evaluated in 8 weeks of inspiratory muscle training

  • Glycated hemoglobin in 12 weeks

    Glycated hemoglobin concentration after 12 weeks of inspiratory muscle training

    Evaluated in 12 weeks of inspiratory muscle training

Secondary Outcomes (6)

  • Glucose in 8 weeks

    Evaluated in 8 weeks of inspiratory muscle training

  • Glucose in 12 weeks

    Evaluated in 12 weeks of inspiratory muscle training

  • Respiratory muscle strength in 8 weeks

    Evaluated in 8 weeks of inspiratory muscle training

  • Respiratory muscle strength in 12 weeks

    Evaluated in 12 weeks of inspiratory muscle training

  • Ventilatory muscle resistance

    Evaluated in 12 weeks of inspiratory muscle training

  • +1 more secondary outcomes

Study Arms (2)

Inspiratory muscle training

EXPERIMENTAL

Patients will perform the inspiratory muscle training using a load moderate of 30% of maximal inspiratory pressure (MIP 30%).

Device: Inspiratory muscle training.

Placebo inspiratory muscle

PLACEBO COMPARATOR

Patients will perform the inspiratory muscle training using a load of 2% of maximal inspiratory pressure (MIP 2%).

Device: Placebo inspiratory muscle

Interventions

Patients will perform the inspiratory muscle training using a moderate load of 30% of maximal inspiratory pressure (MIP 30%). The training will be conducted at home in a period of 30 minutes, 7 times a week, during 12 weeks. During inspiratory muscle training, individuals will attend Hospital de Clinicas de Porto Alegre once a week to the supervision of the way the exercise is being performed. Furthermore, load in the device (powerbreathe) will be adjusted for the individual to use next week.

Inspiratory muscle training

Patients will perform the inspiratory muscle training using a very low load of 2% of maximal inspiratory pressure (MIP 2%). The training will be conducted at home in a period of 30 minutes, 7 times a week, in the course of 12 weeks. During inspiratory muscle training, individuals will attend Hospital de Clinicas de Porto Alegre once a week to the supervision of the way the exercise is being performed.

Placebo inspiratory muscle

Eligibility Criteria

Age30 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Type 2 diabetes;
  • years and older;
  • HbA1c from 7,5 to 10%.

You may not qualify if:

  • Pregnant women;
  • Pulmonary disease (chronic obstructive pulmonary disease, exercise-induced asthma, idiopathic pulmonary fibrosis, sarcoidosis and lung neoplasms);
  • Neuromuscular disease;
  • Body mass index \> 35 kg/m²;
  • Individuals who perform physical exercise more than twice a week;
  • Current smoking.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital de Clínicas de Porto Alegre

Porto Alegre, Rio Grande do Sul, 90.035-903, Brazil

RECRUITING

Related Publications (1)

  • Pinto MB, Bock PM, Schein ASO, Portes J, Monteiro RB, Schaan BD. Inspiratory Muscle Training on Glucose Control in Diabetes: A Randomized Clinical Trial. Int J Sport Nutr Exerc Metab. 2021 Jan 1;31(1):21-31. doi: 10.1123/ijsnem.2020-0175. Epub 2020 Nov 27.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2Motor Activity

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesBehavior

Study Officials

  • Beatriz D'Agord Schaan, PhD

    Hospital de Clinicas de Porto Alegre

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Beatriz D'Agord Schaan, PhD

CONTACT

Mariana Brutto de Pinto

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Parallel Randomized clinical trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 15, 2017

First Posted

June 19, 2017

Study Start

July 11, 2017

Primary Completion

December 31, 2018

Study Completion

January 31, 2019

Last Updated

August 14, 2017

Record last verified: 2017-08

Locations