The podcast discusses a recent study comparing the effects of laser and LED therapy at different wavelengths. It explores the concept of Photobiomodulation and discusses the safety hazards of lasers. The podcast also delves into a study that evaluates changes in hemoglobin and cytochrome C oxidase during laser therapy. Lastly, it compares the effectiveness of LED and laser therapy units.
Different wavelengths of lasers can enhance mitochondrial activity, oxygenation, and blood flow, with the 1064nm laser demonstrating more sustained effects.
LEDs have a broader spectrum of light compared to lasers, and the level of coherence and divergence in LED light can affect penetration and delivery to tissues.
Deep dives
Comparison of LEDs and Lasers
This podcast episode discusses the comparison between LEDs and lasers in the context of medical laser therapy. The main debate revolves around whether lasers have unique properties that regular light bulbs (LEDs) don't. The episode highlights a research study that examines the effects of different wavelengths of light on mitochondrial redox metabolism and hemoglobin oxygenation. The study reveals that all three lasers tested (800, 850, and 1064nm) enhance mitochondrial activity, oxygenation, and blood flow in the human forearm, while the 1064nm laser demonstrates more sustained effects than the others. Additionally, the 810nm LED shows similar effects to the 800nm laser, but with less power. The importance of irradiance and the need for reputable LED units with sufficient intensity is emphasized. Overall, a clinician's choice between LEDs and lasers depends on their specific treatment goals.
Differences Between LEDs and Lasers
The podcast highlights two main differences between LEDs and lasers: wavelength and coherence. LEDs have a broader spectrum of light compared to lasers, and their photons are not concentrated in a narrow band. Coherent laser light travels together in one direction, while LED light scatters more. However, the podcast clarifies that the difference in coherence does not necessarily mean one is better than the other. It explains that the level of divergence in LED light can affect penetration and how light is delivered to tissues. The use of fiber optics can also impact coherence. The podcast emphasizes the importance of choosing LED or laser units with appropriate power and intensity for desired therapeutic effects.
Considerations for Clinicians
The episode provides valuable recommendations for clinicians deciding between LEDs and lasers. It advises that clinicians should invest in reputable LED units with sufficient power and intensity to ensure effective results. While both LEDs and lasers can produce positive effects, the specific treatment goals of the clinician should determine their choice. LED panels may be suitable for wound healing, while large class four laser units are recommended for conditions like peripheral neuropathy. The podcast emphasizes the need for clinicians to have a clear understanding of their treatment objectives and to seek guidance if they are unsure about which option to choose.
Listen in as Dr. Rountree discusses brand-new research comparing laser and LED effects, along with 800nm vs 1064nm wavelengths, testing for light-induced cellular metabolism improvements, and what it all means to the clinician.
