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HealthyNCT01770938

Effects of Phototherapy by Low-level Light-emitting Diode Therapy (LEDT) on Clinical, Biochemical, Biomechanical, Histologic and Genetic Responses of Muscle Performance of Young Males Submitted to Physical Strength Training

A study testing Effective light-emitting diode therapy in people with Healthy, run by Universidade Federal de Sao Carlos 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

Muscle performance is largely influenced by modulations in gene expressions of muscle tissue. In this context, light-emitting diode therapy (LEDT) has been used to improve muscle performance in experimental models and human researches. Read more about this study

Who is it for?
Ages 18 to 28 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Effective light-emitting diode therapy
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
32 participants
Where
1 siteBrazil
Study dates
May 2012to Sep 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 28 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • healthy males aged between 18 and 28 years with a body mass index (BMI) equal to or less than 26 kg/m2,
  • moderated pattern of physical activity

Who cannot join

  • previous injury to the femoral quadriceps or hamstring muscles (within 6 months prior to study),
  • osseous or articular disorder in the lower limbs,
  • cardiovascular system disorders,
  • systemic disease, and
  • taking prescription medicines or using dietary supplements such as muscle mass builders.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Federal University of São Carlos

    São Carlos, São Paulo, 13565-905

Other trials in Brazil

About this study

Muscle performance is largely influenced by modulations in gene expressions of muscle tissue. In this context, light-emitting diode therapy (LEDT) has been used to improve muscle performance in experimental models and human researches. Thereby, the investigators examined modulations in gene expression of muscle tissue as well as biochemical, biomechanic and histologic adaptations influenced by exercise associated to LEDT.

Read the detailed description

This study assessed muscle performance in isokinetic dynamometry and led press device, gene expression by RT-PCR, lactate, creatine kinase and morphology of muscle tissue by immunohistochemical analysis

Conditions
Healthy
Being tested
Effective light-emitting diode therapy, Placebo light-emitting diode therapy
Keywords
Light-emitting diode therapy, Muscle performance, Gene expression, Functional performance

What participants receive

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

  • Effective light-emitting diode therapyDevice

    Also called LED, LED therapy, Light-emitting diode therapy

  • Placebo light-emitting diode therapyDevice

    Also called LED, LED therapy, Light-emitting diode therapy

Study groups in NCT01770938
Study groupRoleWhat they receive
Effective light-emitting diode therapy and trainingActive comparatorEffects of effective light-emitting diode therapy therapy on muscle performance of young males submitted to physical strength training
Receives: Device: Effective light-emitting diode therapy
Placebo light-emitting diode therapy and trainingPlacebo comparatorEffects of placebo light-emitting diode therapy on muscle performance of young males submitted to physical strength training
Receives: Device: Placebo light-emitting diode therapy

What is being measured

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

  1. Modulations on muscle gene expression by RT-PCR

    Measured: 12 weeks

Secondary outcomes (4)
  1. Muscle performance in leg press device

    Measured: 12 weeks

  2. Muscle performance in leg extension device

    Measured: 12 weeks

  3. Muscle performance in isokinetic dynamometer

    Measured: 12 weeks

  4. Gene expression

    Gene expression of muscle tissue by RT-PCR

    Measured: 12 weeks

Timeline

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

  1. First posted18 Jan 2013 (estimated)
  2. Study startMay 2012
  3. Primary completionJul 2012
  4. Study completionSep 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
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01770938
Sponsor's protocol ID
CAAE: 0326.0.135.000-11
Status last verified
Sep 2014
First submitted
15 Sep 2012
Last updated
23 Sep 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Vieira WH, Ferraresi C, Perez SE, Baldissera V, Parizotto NA. Effects of low-level laser therapy (808 nm) on isokinetic muscle performance of young women submitted to endurance training: a randomized controlled clinical trial. Lasers Med Sci. 2012 Mar;27(2):497-504. doi: 10.1007/s10103-011-0984-0. Epub 2011 Aug 26.

    PubMed 21870127
  • Ferraresi C, de Brito Oliveira T, de Oliveira Zafalon L, de Menezes Reiff RB, Baldissera V, de Andrade Perez SE, Matheucci Junior E, Parizotto NA. Effects of low level laser therapy (808 nm) on physical strength training in humans. Lasers Med Sci. 2011 May;26(3):349-58. doi: 10.1007/s10103-010-0855-0. Epub 2010 Nov 18.

    PubMed 21086010

Questions about this trial

What is this clinical trial studying?

A study testing Effective light-emitting diode therapy in people with Healthy, run by Universidade Federal de Sao Carlos 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 5 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 23 Sep 2014. 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?

Modulations on muscle gene expression by RT-PCR (time frame: 12 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 NCT01770938, 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 23 Sep 2014.

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