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Diabetes ComplicationsNCT00815178

Effects of Inspiratory Muscle Training on Type 2 Diabetes Mellitus Patients With Inspiratory Muscle Weakness

A study testing Inspiratory muscle training in people with Diabetes Complications and Inspiratory Muscle Weakness, run by Hospital de Clinicas de Porto Alegre at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to determine if inspiratory muscle training improves inspiratory muscle strength of type 2 diabetes mellitus patients with inspiratory muscle weakness. Read more about this study

Who is it for?
Ages 40 to 75 years
What is being tested?
Inspiratory muscle training
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
25 participants
Where
1 siteBrazil
Study dates
Sep 2006to Sep 2008
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • diabetes melittus
  • sedentary
  • inspiratory muscle weakness with PImax < 70% of the predicted

Who cannot join

  • mass index > 33 kg/m2
  • exercise-induced asthma history
  • infectious disease
  • osteoarticular disease
  • regular alcohol or tobacco consumption in the past 6 months
  • cardiac disease
  • pulmonary disease

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Hospital de Clínicas de Porto Alegre

    Porto Alegre, Rio Grande do Sul, 90035-903

Other trials in Brazil

About this study

Official title: Effects of Inspiratory Muscle Training on Type 2 Diabetes Mellitus Patients With Inspiratory Muscle Weakness: A Randomized, Controlled Clinical Trial

The purpose of the study is to determine if inspiratory muscle training improves inspiratory muscle strength of type 2 diabetes mellitus patients with inspiratory muscle weakness.

Read the detailed description

In congestive heart failure patients, inspiratory muscle weakness can be reversed by developing diaphragmatic hypertrophy through inspiratory muscle training, improving functional capacity and quality of life. In type 2 diabetes mellitus patients the frequency of inspiratory muscle weakness is unknown, as well as the response to inspiratory muscle training. For this reason, the present study evaluated the inspiratory muscle strength in type 2 diabetes mellitus patients and the effect of inspiratory muscle training on inspiratory muscle strength, pulmonary function, functional capacity and autonomic modulation assessed through heart rate variability.

Being tested
Inspiratory muscle training, Inpiratory muscle training placebo
Keywords
inspiratory muscle weakness, autonomic modulation, diabetes mellitus, heart rate variability, functional capacity
Medical subject headings
Diabetes Complications, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Inspiratory muscle trainingBehavioural

    For Inspiratory muscle training (IMT)patients carried out the IMT on a daily basis for eight weeks, with duration of 30 minutes and intensity corresponding to 30% of resting PImax, with a linear pressure resistance device (Threshold®). Weekly maximum inspiratory pressure (PImax) evaluations and workload adjustments were performed. Inspiratory load was adjusted on a weekly basis to maintain 30% of the subject's PImax. Training sessions were carried out at home for both groups and supervised once a week at the hospital.

  • Inpiratory muscle training placeboBehavioural

    Inspiratory muscle training was carried out on the same basis as in the intervention group but with no inspiratory load.

Study groups in NCT00815178
Study groupRoleWhat they receive
Inspiratory muscle trainingExperimentalNot described
Receives: Behavioral: Inspiratory muscle training
PlaceboPlacebo comparatorNot described
Receives: Behavioral: Inpiratory muscle training placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum inspiratory pressure

    Measured: 8 weeks

Secondary outcomes (3)
  1. Peak exercise oxigen consumption

    Measured: 8 weeks

  2. pulmonary function

    Measured: 8 weeks

  3. autonomic modulation assessed by heart rate variability

    Measured: 8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Dec 2008 (estimated)
  2. Study startSep 2006
  3. Primary completionSep 2008
  4. Study completionSep 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00815178
Sponsor's protocol ID
Inspiratory training diabetes
Status last verified
Dec 2008
First submitted
26 Dec 2008
Last updated
29 Dec 2008
Results posted
No
Data monitoring committee
No

Publications

  • Chiappa GR, Roseguini BT, Vieira PJ, Alves CN, Tavares A, Winkelmann ER, Ferlin EL, Stein R, Ribeiro JP. Inspiratory muscle training improves blood flow to resting and exercising limbs in patients with chronic heart failure. J Am Coll Cardiol. 2008 Apr 29;51(17):1663-71. doi: 10.1016/j.jacc.2007.12.045.

    PubMed 18436118
  • Correa AP, Ribeiro JP, Balzan FM, Mundstock L, Ferlin EL, Moraes RS. Inspiratory muscle training in type 2 diabetes with inspiratory muscle weakness. Med Sci Sports Exerc. 2011 Jul;43(7):1135-41. doi: 10.1249/MSS.0b013e31820a7c12.

    PubMed 21200342

Questions about this trial

What is this clinical trial studying?

A study testing Inspiratory muscle training in people with Diabetes Complications and Inspiratory Muscle Weakness, run by Hospital de Clinicas de Porto Alegre at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Dec 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum inspiratory pressure (time frame: 8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00815178, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Dec 2008; AzTrials last refreshed its copy on 8 Nov 2026.

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