Pulsed Light Therapy (PLT): Frequencies, Biological Effects, Clinical Applications, and Outcomes

Generated: 2025-11-29

Pulsed Frequency (Hz)	Biological Effects	Clinical Applications	Outcome / Results
1–5 Hz	Modulates neural activity Enhances microcirculation Reduces pain and inflammation	Traumatic Brain Injury (TBI) Chronic Pain (Fibromyalgia, Osteoarthritis) Post-surgical recovery	Improves cognitive function and memory in TBI Pain reduction and improved mobility Tissue repair, reduced inflammation
6–10 Hz	Stimulates neuroplasticity Promotes growth factor release Increases mitochondrial activity	Alzheimer’s Disease Parkinson’s Disease Cognitive decline Mental health (depression, anxiety)	Reduced amyloid plaques in Alzheimer’s Enhanced motor function in Parkinson’s Reduced depressive symptoms, improved mood
10–15 Hz	Promotes cellular repair Enhances muscle regeneration Stimulates tissue healing	Muscle and joint pain (e.g., rotator cuff injuries) Chronic inflammation Wound healing (diabetic foot ulcers)	Faster recovery from injuries Reduced pain and inflammation Improved tissue regeneration and healing rates
15–40 Hz	Increased fast cellular response Stimulates nerve regeneration Enhances acute tissue healing	Acute injuries (sprains, strains) Nerve regeneration Acute wound healing	Accelerated recovery in soft tissue injuries Improved nerve function and regeneration Enhanced wound closure and tissue repair
>40 Hz	Stronger stimulation of fast-reacting cellular systems Enhanced cellular proliferation	Neurogenesis and nerve regeneration Severe tissue injuries	Accelerated tissue regeneration Enhanced cellular response for nerve and tissue regeneration

Explanation of the Table

Pulsed Frequency (Hz): The frequency of the light pulses, ranging from low (1–5 Hz) to high (>40 Hz).

Biological Effects: Key physiological processes influenced by the specific frequency, such as neuroplasticity, increased circulation, or pain reduction.

Clinical Applications: Specific conditions or areas where this pulsed frequency has been used in clinical settings, including neurological, musculoskeletal, and wound healing contexts.

Outcome/Results: Results or benefits observed in clinical trials or studies, including improvements in pain levels, cognitive function, tissue healing, or neurogenesis.

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