Immediate and Short-term Effects of Low-level Laser

NCT05344183 | Active Not Recruiting

• 1 other identifier: 120422
• Study Type: interventional
• Target: 24
• Locations: 1 country
• Sites: 1

Brief Summary

Athletes experience an exhaustive routine of training, associated with the reduced time of rest, facilitates the appearance of muscle fatigue, which increases the risk of muscle injuries, especially during the execution of the jump. Low Level Lasertherapy is a technique that has been increasingly improved due to the physiological effects it provides in the muscle recovery process. However, there is still a lack of studies focused on the use of this technique in functional improvement, especially in jumping sports. Objectives: To evaluate the immediate and short-term effects of low-level laser on the functional performance of lower limbs of jumping athletes and to evaluate the short-term effects of low-level laser on the activation of the gluteus medius and quadriceps muscles. Methods: This is a brief, double-blind, randomized, placebo-controlled clinical trial. Will be recruited 24 handball and volleyball players aged between 18 to 35 years. The primary outcome of our study is functional performance (modified hop test and modified SEBT), and as a secondary outcome (level of electromyographic activity). After the baseline assessments, the athletes will be randomized and allocated into two groups: Intervention Group (IG, n=12) and Control Group (CG, n=12) and submitted to a fatigue protocol, followed by laser therapy or placebo.

Conditions

Fatigue; Muscle Injury

Outcome Measures

Primary Outcomes (1)

• Functional Performance

  For the evaluation of the functional performance, the tests will be used is the horizontal unipedal jump.

  6 days

Secondary Outcomes (1)

• Muscle activity

  2 days

Study Arms (2)

Lasertherapy

EXPERIMENTAL

Device: Low-level laser

Sham lasertherapy

SHAM COMPARATOR

Device: Low-level laser

Interventions

Low-level laser DEVICE

A laser will be used in the quadriceps and gluteus medius muscles with the following parameters described for muscle recovery: dose of 40 J for the gluteus medius muscle, 180 J for the quadriceps muscle; power from 50 to 200 mW per diode (for single probes), 10 to 35 mW per diode (for cluster probes). The full power of the device cannot lead to thermal effects; Wavelengths of 950 nm (infrared).

Lasertherapy; Sham lasertherapy

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Handball and volleyball athletes;
• Age between 18 and 35 years;
• Both sexes;
• Athletes who maintain a training routine for their sport, at least twice a week

You may not qualify if:

• History of acute injury to the lower limbs (LL) in the last 2 months;
• Occurrence of pain and injury during the study;
• Any change in physical activity routine during the week of assessments.

Sponsors & Collaborators

• Universidade Federal do Amapá: lead

Study Sites (1)

Renan Lima Monteiro

Macapá, Amapá, 68903-419, Brazil

Location

MeSH Terms

Conditions

Fatigue

Interventions

Low-Level Light Therapy

Condition Hierarchy (Ancestors)

Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Laser Therapy; Therapeutics; Phototherapy

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: CARE PROVIDER, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Clinical Professor

Study Record Dates

• First Submitted: April 12, 2022
• First Posted: April 25, 2022
• Study Start: September 3, 2022
• Primary Completion: November 12, 2023
• Study Completion: December 12, 2024
• Last Updated: May 16, 2024

Record last verified: 2024-05

Locations

BR (1)