Study: NCT05155683

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Photobiomodulation (PBM) with infrared LED
Description: All participants will receive 30 minutes of PBM (or PBM sham), with an abdominal strap containing 4 LED clusters with 72 devices that emit 830 nm wavelength with 20 nm spectral width, in continuous operating mode, 5 mW average radiant power per LED, 71 mW/cm² power density at aperture, 20.4 cm² of total area irradiated, 71 mW/cm² of irradiance at target, exposure duration of 1800 seconds, 127.8 J/cm² of radiant exposure, 2.6 kJ of radiant energy, per contact application technique, twice a week for a month, totaling 8 sessions.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Photobiomodulation (PBM) with infrared LED
Description: All participants will receive 30 minutes of PBM (or PBM sham), with an abdominal strap containing 4 LED clusters with 72 devices that emit 830 nm wavelength with 20 nm spectral width, in continuous operating mode, 5 mW average radiant power per LED, 71 mW/cm² power density at aperture, 20.4 cm² of total area irradiated, 71 mW/cm² of irradiance at target, exposure duration of 1800 seconds, 127.8 J/cm² of radiant exposure, 2.6 kJ of radiant energy, per contact application technique, twice a week for a month, totaling 8 sessions.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Low-frequency ultrasound (LOFU)
Description: Subsequently the demarcation of the target area for LOFU treatment (Thoor DGM Electronica, Santo André, São Paulo, Brazil), the application of the neutral conductive gel will occur for the use of low-frequency ultrasound for 30 minutes, which will occur with 22 cm² effective radiating area (ERA) size, \<8 BNR emission intensity, 40 kHz frequency, continuous mode, 60W, 100 cm² of total treated area, twice a week for a month, totaling 8 sessions.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Low-frequency ultrasound (LOFU)
Description: Subsequently the demarcation of the target area for LOFU treatment (Thoor DGM Electronica, Santo André, São Paulo, Brazil), the application of the neutral conductive gel will occur for the use of low-frequency ultrasound for 30 minutes, which will occur with 22 cm² effective radiating area (ERA) size, \<8 BNR emission intensity, 40 kHz frequency, continuous mode, 60W, 100 cm² of total treated area, twice a week for a month, totaling 8 sessions.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Muscle electrostimulation
Description: The session will end with 20 minutes of Russian Current (Tensor DGM Electronica, Santo André, São Paulo, Brazil), whose carrier frequency occurs in 2500 Hz, which will be adjusted according to the parameters described by Evangelista et al. (2003), which are: pulse frequency of 30 Hz; up/down ramp of 2 seconds each; support/rest time of 13 seconds each. The current intensity used will be the maximum supported by each participant and that is comfortable and sufficient to provide visible contraction. The treatment will consist of eight sessions that will occur twice a week, totaling a month of treatment.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Muscle electrostimulation
Description: The session will end with 20 minutes of Russian Current (Tensor DGM Electronica, Santo André, São Paulo, Brazil), whose carrier frequency occurs in 2500 Hz, which will be adjusted according to the parameters described by Evangelista et al. (2003), which are: pulse frequency of 30 Hz; up/down ramp of 2 seconds each; support/rest time of 13 seconds each. The current intensity used will be the maximum supported by each participant and that is comfortable and sufficient to provide visible contraction. The treatment will consist of eight sessions that will occur twice a week, totaling a month of treatment.

Intervention type: DEVICE
Group type: SHAM_COMPARATOR
Intervention: Muscle electrostimulation
Description: The session will end with 20 minutes of Russian Current (Tensor DGM Electronica, Santo André, São Paulo, Brazil), whose carrier frequency occurs in 2500 Hz, which will be adjusted according to the parameters described by Evangelista et al. (2003), which are: pulse frequency of 30 Hz; up/down ramp of 2 seconds each; support/rest time of 13 seconds each. The current intensity used will be the maximum supported by each participant and that is comfortable and sufficient to provide visible contraction. The treatment will consist of eight sessions that will occur twice a week, totaling a month of treatment.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Muscle electrostimulation
Description: The session will end with 20 minutes of Russian Current (Tensor DGM Electronica, Santo André, São Paulo, Brazil), whose carrier frequency occurs in 2500 Hz, which will be adjusted according to the parameters described by Evangelista et al. (2003), which are: pulse frequency of 30 Hz; up/down ramp of 2 seconds each; support/rest time of 13 seconds each. The current intensity used will be the maximum supported by each participant and that is comfortable and sufficient to provide visible contraction. The treatment will consist of eight sessions that will occur twice a week, totaling a month of treatment.