Immediate and Short-term Effects of Low-level Laser

Fatigue Clinical Trial

Official title:

Immediate and Short-term Effects of Low-level Laser on the Functional Performance of the Lower Limbs of Jumping Athletes

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT05344183
• Other study ID #: 120422
• Status: Active, not recruiting
• Phase: N/A
• Start date: September 3, 2022
• Est. completion date: December 12, 2024

Study information

• Verified date: May 2024
• Source: Universidade Federal do Amapá
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 24
• Est. completion date: December 12, 2024
• Est. primary completion date: November 12, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 35 Years

Eligibility

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.

Related Conditions & MeSH terms

• Fatigue
• Muscle Injury

Intervention

Device:
• 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).

Locations

Country	Name	City	State
Brazil	Renan Lima Monteiro	Macapá	Amapá

Sponsors (1)

Lead Sponsor	Collaborator
Universidade Federal do Amapá

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Functional Performance	For the evaluation of the functional performance, the tests will be used is the horizontal unipedal jump.	6 days
Secondary	Muscle activity	Muscle activations will be collected using a FREEEMG 1000 electromyographic instrument in the quadriceps femoris muscles.	2 days