Immediate and Short-term Effects of Low-level Laser

NCT ID: NCT05344183

Last Updated: 2024-05-16

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-09-03
• Study Completion Date: 2024-12-12

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

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Lasertherapy

Group Type: EXPERIMENTAL

Low-level laser

Intervention Type: 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).

Sham lasertherapy

Group Type: SHAM_COMPARATOR

Low-level laser

Intervention Type: 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).

Interventions

Low-level laser

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).

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• 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

Exclusion Criteria

• 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.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 35 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Universidade Federal do Amapá

OTHER

Sponsor Role: lead

Responsible Party

Renan Lima Monteiro

Clinical Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Renan Lima Monteiro

Macapá, Amapá, Brazil

Countries

Brazil

Other Identifiers

120422

Identifier Type: -

Identifier Source: org_study_id