Whole-Body Photobiomodulation Use in Professional Soccer Players During a State Championship
NCT ID: NCT07224646
Last Updated: 2025-11-24
Study Results
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Basic Information
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RECRUITING
NA
24 participants
INTERVENTIONAL
2025-09-04
2026-12-31
Brief Summary
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Detailed Description
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This randomized, controlled clinical trial aims to evaluate the effects of whole-body photobiomodulation (PBM) on recovery and performance in professional soccer players during a state championship.
The intervention will be performed twice weekly on non-consecutive days for 8 weeks, in combination with each athlete's standard training routine. Participants will be allocated to either an active PBM group or a sham PBM group, both following identical procedures to maintain blinding.
Throughout the study, participants will complete scheduled assessments at baseline, during, and after the 8-week period to monitor performance, muscle soreness, and hematological responses. Data will be analyzed using appropriate statistical tests, with a significance level of 5% (two-tailed).
Conditions
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Study Design
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RANDOMIZED
PARALLEL
Participants are randomly assigned to two parallel groups: an Active Photobiomodulation (PBM) group and a Sham PBM group. Both groups undergo the same training schedule and assessment timeline, but only the active group receives therapeutic light exposure. There is no crossover between groups throughout the 8-week intervention period.
TREATMENT
TRIPLE
Study Groups
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Active PBM
Whole-body PBM delivered with a Joovv Elite System (6 LED panels; 660±10 nm red and 850±10 nm near-infrared; total panel area ≈12,193 cm²). Athlete stands \~20 cm from panels, wearing eye protection. Two exposures per session: 450 s anterior + 450 s posterior (total 15 min). Measured average irradiance ≈81.62 mW/cm² and energy density per region ≈25.71 J/cm² at 20 cm. Two sessions/week on non-consecutive days for 8 weeks, after routine training.
Whole-Body Photobiomodulation (PBM) (Active PBM)
This intervention consists of whole-body photobiomodulation delivered using a full-body PBM device. Sessions are performed twice weekly on non-consecutive days for 8 weeks, coinciding with the athletes' standard training. The device emits therapeutic light at specified wavelengths and power, targeting the entire body. The protocol is standardized according to prior research, ensuring consistent exposure for all participants in the active arm. The intervention aims to improve muscle performance and recovery while reducing delayed onset muscle soreness (DOMS).
Sham PBM
Identical setup and schedule, but with therapeutic light disabled (placebo light only). Eye protection and blinding procedures identical to active PBM.
Sham PBM
Intervention Description (Sham PBM):
Participants receive a sham photobiomodulation intervention using the same device and schedule, but without emission of therapeutic light. The procedure mimics the active intervention to maintain blinding while allowing comparison of outcomes, including muscle performance, DOMS, and blood markers.
Interventions
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Whole-Body Photobiomodulation (PBM) (Active PBM)
This intervention consists of whole-body photobiomodulation delivered using a full-body PBM device. Sessions are performed twice weekly on non-consecutive days for 8 weeks, coinciding with the athletes' standard training. The device emits therapeutic light at specified wavelengths and power, targeting the entire body. The protocol is standardized according to prior research, ensuring consistent exposure for all participants in the active arm. The intervention aims to improve muscle performance and recovery while reducing delayed onset muscle soreness (DOMS).
Sham PBM
Intervention Description (Sham PBM):
Participants receive a sham photobiomodulation intervention using the same device and schedule, but without emission of therapeutic light. The procedure mimics the active intervention to maintain blinding while allowing comparison of outcomes, including muscle performance, DOMS, and blood markers.
Eligibility Criteria
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Inclusion Criteria
* Age 18-35 years
* Training frequency ≥5 times per week
* Able to attend all PBM/sham sessions and all assessments during the 8-week intervention
* Signed informed consent
Exclusion Criteria
* Current use of phototherapy or any other recovery-enhancing modality
* Chronic medical conditions that may affect performance or recovery
* Known sensitivity or contraindication to light-based therapies
* Inability to comply with the intervention or training schedule
18 Years
35 Years
MALE
Yes
Sponsors
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Universidade Federal de Sao Carlos
OTHER
Responsible Party
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Italo Amaral de Oliveira
MSc
Principal Investigators
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Italo A Oliveira, MSc
Role: PRINCIPAL_INVESTIGATOR
UFSCAR
Locations
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Desportivo Brasil Training Center
Porto Feliz, São Paulo, Brazil
Countries
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Central Contacts
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Facility Contacts
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References
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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84660524.7.0000.5504
Identifier Type: -
Identifier Source: org_study_id
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