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

October 29, 2013 updated by: Cleber Ferraresi

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

7

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • Natal
      • Rio Grande do Norte, Natal, Brazil, 59072-970
        • Federal Univesity of Rio Grande do Norte

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 28 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

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

Exclusion Criteria:

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Low-level laser therapy (LLLT)
Use of low-level laser therapy (LLLT) to induce a muscle fatigue resistance in intense exercises
Device: Low-level laser therapy (808nm)
Use of low-level laser therapy(LLLT)or placebo-LLLT applied on quadriceps femoris muscles between sets of isokinetic knee flexion-extension exercise
Other Names:
  • Low-level laser therapy;
  • Placebo low-level laser theraphy
  • Laser device (808nm; 100mW; DMC®, Brazil).
Other: isokinetic exercise
Other Names:
  • Isokinetic knee flexion-extension exercise
ACTIVE_COMPARATOR: Placebo low-level laser therapy (Placebo)
Use of low-level laser therapy (LLLT) placebo to induce a muscle fatigue resistance
Other: isokinetic exercise
Other Names:
  • Isokinetic knee flexion-extension exercise
Device: Placebo low-level laser therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Maximum repetitions
Time Frame: 1 week
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).
1 week

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Median Frequency
Time Frame: 1 week
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).
1 week

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Cleber Ferraresi

Collaborators

Universidade Federal do Rio Grande do Norte

Investigators

  • Principal Investigator: Cleber Ferraresi, MD, Universidade Federal de Sao Carlos

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2013

Primary Completion (ACTUAL)

September 1, 2013

Study Completion (ACTUAL)

October 1, 2013

Study Registration Dates

First Submitted

October 22, 2013

First Submitted That Met QC Criteria

October 29, 2013

First Posted (ESTIMATE)

October 30, 2013

Study Record Updates

Last Update Posted (ESTIMATE)

October 30, 2013

Last Update Submitted That Met QC Criteria

October 29, 2013

Last Verified

October 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CEP/UFRN 401/09

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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