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Respiratory MusclesNCT02604147

Inspiratory Muscle Training in Wheelchair Basketball Players

A study testing Inspiratory pressure-threshold muscle training device. and nspiratory pressure-threshold muscle training device. in people with Respiratory Muscles and Breathing Exercises, run by Universidade Metodista de Piracicaba.

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

Investigate the effects of Inspiratory Muscle Training on the physical performance and cardiorespiratory variables of wheelchair basketball players. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
What is being tested?
Inspiratory pressure-threshold muscle training device. and nspiratory pressure-threshold muscle training device.
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
No sites listed yet
Study dates
Jan 2014to Aug 2014
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 18 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • training wheelchair basketball for more than one year.

Who cannot join

  • cardiovascular or respiratory disease.
  • motor or cognitive impairments that influencing the results of evaluations.
  • smoking.

About this study

Official title: Inspiratory Muscle Training in Wheelchair Basketball Players: Effects on Physical Performance and Cardiopulmonary Variables

Investigate the effects of Inspiratory Muscle Training on the physical performance and cardiorespiratory variables of wheelchair basketball players.

Read the detailed description

The respiratory system has been touted as a limiting factor of physical performance during high intense physical exercises. This limitation is related, among other things, with the fatigue of respiratory muscles. The fatigue of these muscles during physical exercise generates many physiological reflex activation culminating in reduced blood flow to the limb muscles, resulting in decrease in muscle performance. Researchers showed that the inspiratory muscle training (IMT) is able to generate improved of athlete's physical performance. However, when it comes to wheelchair athletes there are still divergent views on the effects of IMT on the physical performance. Thus, this study aims to evaluate the effects of IMT on the physical performance and cardiorespiratory variables of wheelchair basketball players. For this purpose, the investigators will select 40 wheelchair basketball players of both genders. The participants will be allocated blindly and randomly into two groups that differ by the proposed interventions. In IMT Group, the participants will be submitted to a IMT program with inicial load of 50% of maximal inspiratory pressure (MIP); the SHAM Group will be submitted to a simulated IMT with load of 15% of MIP. All participants will pass through the same evaluation procedures before and after the interventions, so that the investagators can evaluate the benefits generated by the IMT on the physical performance and cardiorespiratory variables of wheelchair basketball players.

Being tested
Inspiratory pressure-threshold muscle training device., nspiratory pressure-threshold muscle training device.

What participants receive

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

  • Inspiratory pressure-threshold muscle training device.Device

    Also called POWERbreathe - model Sports Plus Heavy Resistance (HAB International Ltd., Warwickshire, United Kingdom).

    The participants who will be allocated in this simulated intervention group will have to do a simulated inspiratory muscle training protocol through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with a load of 15% of maximal inspiratory pressure without progression. In each session will be requested to the volunteers make 30 slow breaths, which will be constantly supervised by the researchers.

  • nspiratory pressure-threshold muscle training device.Device

    Also called POWERbreathe - model Sports Plus Heavy Resistance (HAB International Ltd., Warwickshire, United Kingdom).

    The participants who will be allocated in this intervention group will have to make a inspiratory muscle training protocol with progressive loads through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with an initial load of 50% of maximal inspiratory pressure, progressing to 60% after the fourth week, and 70% after the octave week. In each session will be requested to volunteers who performed 30 maximal and prolonged inspiration, maintaining the diaphragmatic breathing, which will be constantly supervised by the researchers.

Study groups in NCT02604147
Study groupRoleWhat they receive
Simulated inspiratory muscle trainingSham comparatorInspiratory muscle training with load of 15% of maximal inspiratory pressure.
Receives: Device: Inspiratory pressure-threshold muscle training device.
Inspiratory muscle training groupExperimentalInspiratory muscle training with initial load of 50% of maximal inspiratory pressure.
Receives: Device: nspiratory pressure-threshold muscle training device.

What is being measured

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

  1. Aerobic Capacity

    The evaluation of aerobic capacity will be conducted by the 12-minutes aerobic performance test in a multisport court. In this field test the participants will have to covering the greatest distance as possible in the twelve minutes in a suitably demarcated circuit. Heart rate, blood pressure, peripheral oxygen saturation and subjective perception of effort with the Borg scale will be measured in this test.

    Measured: 3 months

Secondary outcomes (4)
  1. Pulmonary Function

    The pulmonary function will be measured by a spirometer (Easy one, ndd Medizintechnik AG, Zurich, Switzerland) according to American Thoracic Society (ATS) guidelines for technique, acceptability and reproducibility.

    Measured: 3 months

  2. Respiratory Muscle Strength

    The respiratory muscle strength values will be obtained by measuring maximal inspiratory and expiratory pressures (MIP and MEP) with an analog manometer (Ger-ar®, São Paulo, Brazil) scaled in cmH2O with an operational limit of ± 300 cmH2O.

    Measured: 3 months

  3. Thoracic mobility

    The thoracic mobility will be measured by the thoracic cirtometry.

    Measured: 3 months

  4. Heart rate variability

    The heart rate variability will be measured with a Polar RS800CX® heart rate monitor (Polar Electro Co.Ltda. Kempele, Oulu, Finland).

    Measured: 3 months

Timeline

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

  1. First posted13 Nov 2015 (estimated)
  2. Study startJan 2014
  3. Primary completionJul 2014
  4. Study completionAug 2014

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
Single blind
Who is masked
Participant
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02604147
Sponsor's protocol ID
UNIMEP
Status last verified
May 2016
First submitted
25 Sep 2015
Last updated
13 May 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Inspiratory pressure-threshold muscle training device. and nspiratory pressure-threshold muscle training device. in people with Respiratory Muscles and Breathing Exercises, run by Universidade Metodista de Piracicaba.

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 1 inclusion and 3 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 13 May 2016. Status can change between updates, so confirm with the study contact before making plans.

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?

Aerobic Capacity (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 May 2016.

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