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Resistance TrainingNCT03112239

Chronic Effects Using Light-Emitting Diode Therapy (LEDT) During a Resistance Exercise Protocol for Asthmatic Patients

A study testing Light-Emitting Diode Therapy (LEDT) in people with Resistance Training, run by University of Nove de Julho 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 objective of this study is to evaluate the effects of LED phototherapy associated with a resistance training protocol on the peripheral muscle function of moderate to severe asthmatic patients .. Read more about this study

Who is it for?
Ages 20 to 50 years
Conditions the study is for
Resistance Training
What is being tested?
Light-Emitting Diode Therapy (LEDT)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteBrazil
Study dates
Mar 2014to Dec 2016
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 20 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patients with a medical outpatient setting less than six months; With a stable clinical picture during three months, ie without exacerbations and with optimized drug therapy.
  • Signed an informed consent form (TCLE) accepting participation in the research.

Who cannot join

  • Diagnosis of heart disease associated with lung disease, musculoskeletal disease that may interfere with assessment or exercise, pulmonary hypertension, calcium absorption deficiency, BMI ≥ 30, or difficulty learning.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Ivan Peres Costa

    São Paulo, São Paulo, 05415-012

Other trials in Brazil

About this study

Official title: Chronic Effects Using Light-Emitting Diode Therapy (LEDT) During a Resistance Exercise Protocol for Moderate to Severe Asthmatic Patients: a Randomized Controlled Clinical Trial.

The objective of this study is to evaluate the effects of LED phototherapy associated with a resistance training protocol on the peripheral muscle function of moderate to severe asthmatic patients ..

Read the detailed description

This research project will be prospective, analytical and of the randomized controlled clinical trial type, with blind evaluator. The sample type will be consecutive from Santa Casa de Misericórdia de São Paulo. We will study 30 adults of both sexes with moderate to severe asthma between the ages of 20 and 70, based on the sample calculation of the outcomes of this study.

Adult individuals 20 years of age or older with a diagnosis of moderate to severe asthma of both sexes, attended at the Ambulatory of Difficult Asthma Control of Santa Casa de Misericórdia de São Paulo.

Exclusion terms include subjects diagnosed as having heart disease associated with pulmonary disease, musculoskeletal pathology that may interfere with assessment or exercise, pulmonary hypertension, calcium absorption deficiency, BMI ≥ 30 or difficulty learning.

The subjects will initially be pre-evaluated by performing pulmonary function tests, peripheral muscle strength (1-RM), functional capacity tests, physical activity questionnaires and clinical control of asthma and cardiopulmonary exercise test. After the evaluation, patients will be randomized into two resistance training groups, one of them associated with active LED phototherapy and another LED phototherapy placebo.

The resistance exercise protocol will be performed on the muscles: Pectoral, Large Dorsal, Brachial Biceps, Brachial Triceps, Quadriceps and Tibial Ischia. The intensity will be from 40 to 70% obtained in the 1-RM test with two to three sets of ten repetitions.

The load increase will be performed weekly (5%) according to patient tolerance. After 12 weeks all subjects were reevaluated and the last reevaluation occurred at the end of the training program. Patients will only effectively begin participating in this study after explaining the terms of the survey and by accepting written consent from the ICF.

The mean (in kg) of the resistance training protocol for lower limbs in knee extension of group 1 was 33 ± 13 kg and the mean of group 2 was 46 ± 11 kg. The sample calculation was based on the load of the quadriceps muscle, α = 0.05 and β = 95%, determining a minimum of fourteen individuals for each group. An additional 10% was added to compensate for possible losses during the protocol. Thus a minimum of fifteen individuals will be required for the study.

Linear regression models will be used to evaluate the effect of the LED on the results (absolute change and percentage) and a sensitivity analysis with the values of the results in the revaluation, adjusted by the initial value of each result. The possible correlations between the variables can be evaluated using Pearson's correlation. The level of significance adopted will be p <0.5. The analyzes were performed with SPSS 20 software.

Being tested
Light-Emitting Diode Therapy (LEDT)
Keywords
Asthma, Photobiomodulation, Resistance Training
Medical subject headings
Asthma

What participants receive

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

  • Light-Emitting Diode Therapy (LEDT)Device

    Also called photobiomodulation by LEDT

    Light-emitting diode, has effects similar to the photobiomodulation by low-level laser intensity.

Study groups in NCT03112239
Study groupRoleWhat they receive
photobiomodulation by active LEDTActive comparatorThe subjects will be initially pre-evaluated by performing pulmonary function tests, peripheral muscle strength tests, functional capacity tests, physical activity questionnaires and clinical control of asthma, and cardiopulmonary exercise test. After the evaluation, patients will be randomized into two resistance training groups, one of them being associated to the intervention with active photobiomodulation by LEDT to increase peripheral muscle function post resistance training.
Receives: Device: Light-Emitting Diode Therapy (LEDT)
photobiomodulation by Placebo LEDTPlacebo comparatorThe subjects will be initially pre-evaluated by performing pulmonary function tests, peripheral muscle strength tests, functional capacity tests, physical activity questionnaires and clinical control of asthma, and cardiopulmonary exercise test. After the evaluation, patients will be randomized into two resistance training groups, one of them being associated to the intervention with placebo LEDT photobiomodulation to increase peripheral muscle function post resistance training.
Receives: Device: Light-Emitting Diode Therapy (LEDT)

What is being measured

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

  1. Pectoral Muscular Strength by 1RM.

    Muscle strength will be assessed in the pectoral muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

  2. Major Dorsal Muscular Strength by 1RM

    Muscle strength will be assessed in the major dorsal muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

  3. Femoral Quadriceps Muscular Strength by 1RM

    Muscle strength will be assessed in the femoral quadriceps muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

  4. Brachial Triceps Muscular Strength by 1RM

    Muscle strength will be assessed in the brachial triceps muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

  5. Brachial Biceps Muscular Strength by 1RM

    Muscle strength will be assessed in the brachial biceps muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

  6. Tibial Ischia Muscular Strength by 1RM

    Muscle strength will be assessed in the tibial ischia muscle group, using the maximal repetition (1RM) test to quantify the resistance training load (between 60 and 80%).

    Measured: Change from Baseline Peripheral muscular Strength up to 24 weeks.

Secondary outcomes (2)
  1. Functional Capacity by Cardiopulmonary exercise test.

    The cardiopulmonary test will be performed in an electricomagnetic braking cycle ergometer connected to a system composed of gas analysis module attached to a module flow/wave analyzer and a microcomputer BreezeCardiO2 System. (medical Graphics Corporation - MGC, St. Paul, Mo, USA).

    Measured: Change from baseline measured by cardiopulmonary exercise test up to 24 weeks.

  2. Functional Capacity by Incremental Shuytle Walk Test.

    The incremental shuttle walk test was performed based on the original test description. The patient walk from side to side in a space of 10 meters identified by two cones inserted 0.5 from each end to avoid such sudden changes in speed. The participant was instructed to walk from cone to cone in one. A single point that the participant must keep pace and a triple beep indicates the beginning of a new level, the height at which the participant has increased the pace. The test comprised 12 levels, each lasting one minute. The speed of the first level was 1.8 Km/h, with an increase of 0.17 m/s every minute until reaching a top speed of 8.53 Km/h. The test was stopped when the participant was unable to reach the cone before the next beep.

    Measured: Change from baseline measured by Incremental Shuttle Walk Test distance up to 24 weeks.

Timeline

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

  1. First posted13 Apr 2017
  2. Study startMar 2014
  3. Primary completionJan 2015
  4. Study completionDec 2016

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
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03112239
Sponsor's protocol ID
ERAMG-LED-PL-01
Status last verified
Apr 2017
First submitted
3 Dec 2016
Last updated
13 Apr 2017
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No: IPD will not be shared with other researchers since there is no third party interest in the data collected.

Publications

  • Miranda EF, Leal-Junior EC, Marchetti PH, Dal Corso S. Acute effects of light emitting diodes therapy (LEDT) in muscle function during isometric exercise in patients with chronic obstructive pulmonary disease: preliminary results of a randomized controlled trial. Lasers Med Sci. 2014 Jan;29(1):359-65. doi: 10.1007/s10103-013-1359-5. Epub 2013 Jun 7.

    PubMed 23743817
  • Dourado VZ, Tanni SE, Antunes LC, Paiva SA, Campana AO, Renno AC, Godoy I. Effect of three exercise programs on patients with chronic obstructive pulmonary disease. Braz J Med Biol Res. 2009 Mar;42(3):263-71. doi: 10.1590/s0100-879x2009000300007.

    PubMed 19287905

Questions about this trial

What is this clinical trial studying?

A study testing Light-Emitting Diode Therapy (LEDT) in people with Resistance Training, run by University of Nove de Julho 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 2 inclusion and 1 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 Apr 2017. 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?

Pectoral Muscular Strength by 1RM. (time frame: Change from Baseline Peripheral muscular Strength up to 24 weeks.). The study lists 6 primary outcomes in all. 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 NCT03112239, 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 13 Apr 2017.

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