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Laser Therapy on Neuromuscular Performance

NCT02813395 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2016-06-27

No results posted yet for this study

Summary

Objective: Investigating the immediate effects of Low Level Laser Therapy (LLLT) on neuromuscular performance in healthy subjects after an induced muscle fatigue protocol. Methods: Eighty volunteers of both genders aged between 18 and 28 years underwent a preliminary evaluation using surface electromyography and isokinetic dynamometer of the flexor muscles of the elbow. The subjects were randomly allocated into 4 groups: G1 was control group; G2 placebo; G3 laser applied before fatigue protocol; and G4 immediately after. Muscular fatigue protocol consisted of 30 maximal concentric isokinetic contractions at 120°/s of the elbow flexor muscles. An 808 nm equipment was used for applying laser therapy, with a power of 100 mW and total energy of 20 J. Volunteers were reassessed after interventions.

Conditions

Interventions

DEVICE

Low Level Laser Therapy

Low Level Laser Therapy was applied at four points to the dominant upper limb of the volunteers on the muscle belly of the biceps. Delineation was done using a measuring tape from the elbow joint line to the acromion marked at points corresponding to 20%, 30%, 40% and 50% of this distance, focusing the application on the muscle belly region, thereby excluding the tendinous region. An 808 nm equipment was used for applying laser therapy, with a power of 100 mW and total energy of 20 J.

DEVICE

Placebo Laser

Laser application simulation with a second pen of the laser device, which was disconnected and did not effectively irradiate energy.

Sponsors & Collaborators

  • Universidade Federal do Rio Grande do Norte

    lead OTHER

Study Design

Allocation
RANDOMIZED
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
28 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-04-30
Primary Completion
2015-03-31
Completion
2015-08-31

Countries

  • Brazil

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02813395 on ClinicalTrials.gov