Effects of Photobiomodulation on anterior serratio muscle, Electromyographic Fatigue, and conjunct action of shoulder muscles

Not Applicable

Recruiting

• Conditions: Muscle fatigue, Men; M01.390; G11.427.550

• Registration Number: RBR-9wnkk7
• Lead Sponsor: Departamento de Ciências do Movimento Humano

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2017-10-07
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruiting
• Sex: Male
• Target Recruitment: Not specified

Inclusion Criteria

Age between 20 and 30 years; full and non-painful active range of motion of the shoulder; elbow and wrist joints; Body mass index (BMI) less than or equal to 27; Considered not very active by the International Physical Activity Questionnaire (IPAQ); have not been in training for at least three months.

Exclusion Criteria

Musculoskeletal dysfunction in shoulder, wrist and hand elbow; Weakness of the anterior serratus muscle; winged scapula; history of trauma or previous surgery in the upper extremities; subluxation of the glenohumeral joint; rheumatic, degenerative or neurological disease; patients with diabetes mellitus and fibromyalgia; patients with uncontrolled hypertension; regular intake of drugs and dietary supplements; Fitzpatrick Type Scale Type V and Type VI classification and physical training

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Reduction of anterior serratus fatigue after the use of active photobiomodulation, verified through the Median Frequency (Fmed) of the electromyographic signal, collected during the fatigue task. Fatigue is seen from a frequency decline of more than 8%.<br><br>Reduction in the muscle synergism of shoulder muscles due to the reduction of anterior serratus fatigue, verified through electromyography, namely the Root Mean Square (RMS) of the activation values of the shoulder muscles. The assessment of muscle activation is done before and after the task of fatigue. The change in synergism is evidenced by a change in the activation rates between the pairs of synergistic muscles, when the moments before and after fatigue were compared.

Secondary Outcome Measures

Name	Time	Method
Increase of the volunteer's time spent in the task of fatigue when the serratus is previously i irradiated with active photobiomodulation, verified through the time, in seconds, that the volunteer will take to leave the task.<br>