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

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Device: Low-level laser therapy (808nm); Other: isokinetic exercise; Device: Placebo low-level laser therapy

• Registration Number: NCT01972100
• Lead Sponsor: Cleber Ferraresi

Brief Summary

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

Detailed Description

Not available

Study Timeline

• Study Start: 2013-04
• Primary Completion: 2013-09
• Status Verified: 2013-10
• Study Completion: 2013-10
• Study First Submitted: 2013-10-22
• Study First Submitted QC: 2013-10-29
• Last Update Submitted: 2013-10-29
• Study First Posted: 2013-10-30
• Last Update Posted: 2013-10-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 7

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 & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Low-level laser therapy (LLLT)	Low-level laser therapy (808nm)	Use of low-level laser therapy (LLLT) to induce a muscle fatigue resistance in intense exercises
Low-level laser therapy (LLLT)	isokinetic exercise	Use of low-level laser therapy (LLLT) to induce a muscle fatigue resistance in intense exercises
Placebo low-level laser therapy (Placebo)	isokinetic exercise	Use of low-level laser therapy (LLLT) placebo to induce a muscle fatigue resistance
Placebo low-level laser therapy (Placebo)	Placebo low-level laser therapy	Use of low-level laser therapy (LLLT) placebo to induce a muscle fatigue resistance

Primary Outcome Measures

Name	Time	Method
Maximum repetitions	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

Name	Time	Method
Median Frequency	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).

Trial Locations

Locations (1)

Federal Univesity of Rio Grande do Norte; 🇧🇷 Rio Grande do Norte, Natal, Brazil