Influence of PBM on Anaerobic Capacity Under Normoxia and Hypoxia

University of Sao Paulo

Status: Active, not recruiting

Conditions: Low Level Laser Therapy; Performance; Photobiomodulation; Sport

Treatments: Device: Photobiomodulation therapy

Study type: Interventional

Funder types: Other

Identifiers

NCT05595564

Hypoxia_PBM

Details and patient eligibility

About

The photobiomodulation (PBM) shows positive results in muscle performance, fatigue reduction, management of blood lactate production, analgesia and in the increase of VO2 maximal, favoring the increase of ATP production and thus the energy metabolism. The association of PBM applied before high-intensity treadmill training shows physiological improvements both in normoxic (Nor) and hypoxic (Hip) conditions. Anaerobic capacity (AC) is the maximum amount of ATP that can be resynthesized by anaerobic metabolism and is an important predictor of high-intensity exercise since an athlete's ability to perform efforts to increase maximal oxygen consumption (VO2max) depends on AL. In view of the above information the main objective of the present research project will be to investigate the effects of PBM on AC under normoxic and hypoxic conditions in amateur runners. To test the effects of exercise training on anaerobic capacity under normoxic and hypoxic conditions, 7 individuals will be randomly submitted to four maximal efforts to exhaustion with intensity corresponding to 110% of VO2max in Hip, Nor, Hip+Ebio and Nor+Ebio conditions. These efforts will be used to estimate the AC, that is, the maximum accumulated deficit of alternative oxygen (MAODRED), from the sum of the energy contribution of the anaerobic and lactic metabolisms.

Enrollment: 7 patients

Sex: Male

Ages: 18 to 29 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• healthy individuals
• VO2 maximal equal to or greater than 34 ml/kg.min
• capacity for physical activity according to the PAR-Q questionnaire

Exclusion criteria

• musculoskeletal injury in the last three months;
• cardiovascular diseases;
• use of anabolic, anti-inflammatory and analgesic drugs 72 hours before the evaluations;
• use of alcohol and illicit drugs during the collection period;

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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7 participants in 2 patient groups

Hypoxia

Experimental group

Description:

Participant developed running activity on a treadmill in hypoxic condition, submitted or not to photobiomodulation therapy.

Treatment:

Device: Photobiomodulation therapy

Normoxia

Active Comparator group

Description:

Participant developed treadmill running activity in normoxic condition, submitted or not to photobiomodulation therapy.

Treatment:

Device: Photobiomodulation therapy