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Introduction to the Investigation I. INTRODUCTION The purpose of this thesis was to study the effectiveness of light therapy in swelling and pain of acute lower extremity sprains and strains of collegiate athletes. Light Therapy, Low Level Laser Therapy, or Cold Laser has been around for many years. In fact the Europeans and Russians pioneered the use of lasers in the early 1960’s (Fitz- Ritson, 2001). The United States has been using light therapy as a therapeutic modality since the early 1970’s. In 2002 the Food and Drug Administration made light therapy available to Allied Health Professionals all over the United States by stating that light therapy was allowed to be used for the relief of carpal tunnel syndrome and in relieving chronic neck and shoulder pain. (McLeod, 2004). The term laser is actually just an acronym. Laser stands for “Light Amplification by Stimulated Emission of Radiation.” In 1917 Albert Einstein published a paper which outlined the key concepts and principles for the stimulated emission of photons. The birth of a piece of equipment termed the MASER (Microwave Amplification by Stimulated Emission of Radiation) was made about forty years later (Cartwright, 2002). Much research has been done using light therapy for therapeutic modalities. Light therapy has been found to decrease inflammation in patients by 20-30% after being treated daily for 10 minutes (Fitz-Ritson, 2001). Inflammation, researchers have found, is a significant source of pain. Research is beginning to show that light therapy may lessen muscle spasm and pain by working at the circulatory level (Fitz-Ritson, 2001). 1PDF Image | Light Therapy on Pain and Swelling vs Collegiate Athletes
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