What year did Dr. Karl Lewit experiment with dry needling without fluids?

Dr. Karl Lewit is recognized for his pioneering work in the field of dry needling, particularly for developing techniques that involve the use of thin needles without the injection of fluids. In 1979, he conducted experiments that helped establish dry needling as a therapeutic intervention for myofascial pain. His research contributed significantly to the understanding and application of dry needling in clinical practice, marking a notable advancement in pain management methods. This year is pivotal as it represents the point at which dry needling began to gain acceptance in the medical and therapeutic communities.