Fatigue Clinical Trial
Official title:
Immediate Effects of Low-level Laser Therapy (808nm) on Neuromuscular Performance After Muscle Fatigue: Randomized-blinded Clinical Trial
Verified date | June 2016 |
Source | Universidade Federal do Rio Grande do Norte |
Contact | n/a |
Is FDA regulated | No |
Health authority | Brazil: Ethics Committee |
Study type | Interventional |
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.
Status | Completed |
Enrollment | 80 |
Est. completion date | August 2015 |
Est. primary completion date | March 2015 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years to 28 Years |
Eligibility |
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. |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Country | Name | City | State |
---|---|---|---|
Brazil | Federal University of Rio Grande do Norte | Natal | RN |
Lead Sponsor | Collaborator |
---|---|
Universidade Federal do Rio Grande do Norte |
Brazil,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Peak torque normalized by body weight | Change from baseline to one hour. | Yes |
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