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Laser Therapy on Neuromuscular Performance

U

Universidade Federal do Rio Grande do Norte

Status

Completed

Conditions

Fatigue

Treatments

Device: Placebo Laser
Device: Low Level Laser Therapy

Study type

Interventional

Funder types

Other

Identifiers

NCT02813395
RMV2016

Details and patient eligibility

About

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.

Enrollment

80 patients

Sex

All

Ages

18 to 28 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Being between 18-28 years of age, having no pain in the shoulder area, elbow or hand, and not having suffered any to injury to the assessed upper limb in the last six months.

Exclusion criteria

  • Presenting pain that prevented the completion of the evaluation, subjects whose data were improperly recorded or if the volunteer withdrew from the study.

Trial design

80 participants in 4 patient groups, including a placebo group

Control group
No Intervention group
Description:
Volunteers remained at rest before and after the fatigue protocol.
Placebo group
Placebo Comparator group
Description:
Volunteers were subjected to laser application simulation for approximately four minutes with a second pen of the laser device, which was disconnected and did not effectively irradiate energy.
Treatment:
Device: Placebo Laser
Laser before
Experimental group
Description:
Volunteers received effective application of laser before fatigue protocol.
Treatment:
Device: Low Level Laser Therapy
Laser after
Experimental group
Description:
Volunteers received effective application of laser after fatigue protocol.
Treatment:
Device: Low Level Laser Therapy

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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