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

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ClinicalTrials.gov Identifier: NCT01972100
Recruitment Status : Completed
First Posted : October 30, 2013
Last Update Posted : October 30, 2013
Sponsor:
Collaborator:
Universidade Federal do Rio Grande do Norte
Information provided by (Responsible Party):
Cleber Ferraresi, Universidade Federal de Sao Carlos

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

Condition or disease Intervention/treatment Phase
Healthy Device: Low-level laser therapy (808nm) Other: isokinetic exercise Device: Placebo low-level laser therapy Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 7 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Use of Low-level Laser Therapy (808nm) to Muscle Fatigue Resistance: a Randomized Double-blind Crossover Trial
Study Start Date : April 2013
Actual Primary Completion Date : September 2013
Actual Study Completion Date : October 2013

Resource links provided by the National Library of Medicine


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 Name: 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 Name: Isokinetic knee flexion-extension exercise

Device: Placebo low-level laser therapy



Primary Outcome Measures :
  1. 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).


Secondary Outcome Measures :
  1. 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).



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Ages Eligible for Study:   18 Years to 28 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01972100


Locations
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Brazil
Federal Univesity of Rio Grande do Norte
Rio Grande do Norte, Natal, Brazil, 59072-970
Sponsors and Collaborators
Cleber Ferraresi
Universidade Federal do Rio Grande do Norte
Investigators
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Principal Investigator: Cleber Ferraresi, MD Universidade Federal de Sao Carlos
Study Director: Wouber Hérickson de Brito Vieira, PhD Universidade Federal do Rio Grande do Norte

Additional Information:
Publications:
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Responsible Party: Cleber Ferraresi, Universidade Federal de Sao Carlos
ClinicalTrials.gov Identifier: NCT01972100     History of Changes
Other Study ID Numbers: CEP/UFRN 401/09
First Posted: October 30, 2013    Key Record Dates
Last Update Posted: October 30, 2013
Last Verified: October 2013

Keywords provided by Cleber Ferraresi, Universidade Federal de Sao Carlos:
Low-level laser therapy
Muscle fatigue resistance

Additional relevant MeSH terms:
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Fatigue
Signs and Symptoms