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HealthyNCT01972100

Use of Low-level Laser Therapy (808nm) to Muscle Fatigue Resistance

A study testing Low-level laser therapy (808nm) and isokinetic exercise in people with Healthy, run by Cleber Ferraresi 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 study hypothesis is a improved muscle fatigue resistance induced by low-level laser therapy applied between sets of intense exercises. Read more about this study

Who is it for?
Ages 18 to 28 years, men only
Conditions the study is for
Healthy
What is being tested?
Low-level laser therapy (808nm) and isokinetic exercise
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
7 participants
Where
1 siteBrazil
Study dates
Apr 2013to Oct 2013
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
  • No healthy volunteers
  • Adult

Who may be able to join

  • healthy males
  • physically active
  • aged between 18-28 years old

Who cannot join

  • smoker
  • under medicine
  • lower limb lesions limiting the flexion-extension of the knee joint

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Federal Univesity of Rio Grande do Norte

    Rio Grande Do Norte, Natal, 59072-970

Other trials in Brazil

About this study

Official title: Use of Low-level Laser Therapy (808nm) to Muscle Fatigue Resistance: a Randomized Double-blind Crossover Trial

The study hypothesis is a improved muscle fatigue resistance induced by low-level laser therapy applied between sets of intense exercises.

Conditions
Healthy
Being tested
Low-level laser therapy (808nm), isokinetic exercise, Placebo low-level laser therapy
Keywords
Low-level laser therapy, Muscle fatigue resistance

What participants receive

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

  • Low-level laser therapy (808nm)Device

    Also called Low-level laser therapy;, Placebo low-level laser theraphy, Laser device (808nm; 100mW; DMC®, Brazil).

    Use of low-level laser therapy(LLLT)or placebo-LLLT applied on quadriceps femoris muscles between sets of isokinetic knee flexion-extension exercise

  • isokinetic exerciseOther

    Also called Isokinetic knee flexion-extension exercise

  • Placebo low-level laser therapyDevice

Study groups in NCT01972100
Study groupRoleWhat they receive
Low-level laser therapy (LLLT)Active comparatorUse of low-level laser therapy (LLLT) to induce a muscle fatigue resistance in intense exercises
Receives: Device: Low-level laser therapy (808nm); Other: isokinetic exercise
Placebo low-level laser therapy (Placebo)Active comparatorUse of low-level laser therapy (LLLT) placebo to induce a muscle fatigue resistance
Receives: Other: isokinetic exercise; Device: Placebo low-level laser therapy

What is being measured

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

  1. Maximum repetitions

    Evaluation of maximum repetitions of knee flexion-extension in isokinetic dynamometer. Volunteers were assessed on Monday (pre evaluation - baseline), on Wednesday performed a session of exercises and on Friday were assessed again (final evaluation).

    Measured: 1 week

Secondary outcomes (1)
  1. Median Frequency

    Evaluation of median frequency by surface electromyography of quadriceps femoris muscles during maximum repetitions of knee flexion-extension in isokinetic dynamometer. Volunteers were assessed on Monday (pre evaluation - baseline), on Wednesday performed a session of exercises and on Friday were assessed again (final evaluation).

    Measured: 1 week

Timeline

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

  1. First posted30 Oct 2013 (estimated)
  2. Study startApr 2013
  3. Primary completionSep 2013
  4. Study completionOct 2013

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
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01972100
Sponsor's protocol ID
CEP/UFRN 401/09
Status last verified
Oct 2013
First submitted
22 Oct 2013
Last updated
30 Oct 2013
Results posted
No

Publications

  • Felismino AS, Costa EC, Aoki MS, Ferraresi C, de Araujo Moura Lemos TM, de Brito Vieira WH. Effect of low-level laser therapy (808 nm) on markers of muscle damage: a randomized double-blind placebo-controlled trial. Lasers Med Sci. 2014 May;29(3):933-8. doi: 10.1007/s10103-013-1430-2. Epub 2013 Sep 5.

    PubMed 24005882
  • Ferraresi C, Hamblin MR, Parizotto NA. Low-level laser (light) therapy (LLLT) on muscle tissue: performance, fatigue and repair benefited by the power of light. Photonics Lasers Med. 2012 Nov 1;1(4):267-286. doi: 10.1515/plm-2012-0032.

    PubMed 23626925
  • 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 Low-level laser therapy (808nm) and isokinetic exercise in people with Healthy, run by Cleber Ferraresi 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 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 30 Oct 2013. 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. 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 repetitions (time frame: 1 week). 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 NCT01972100, which also lists 4 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 30 Oct 2013.

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