OBJECTIVE: To perform large sample data analysis on the trends and characteristics of oxygen metabolism in endurance testing. Methodology: Using the near-infrared light system (Moxy), muscle oxygen changes during exercise cardiopulmonary function tests were performed on 400 athletes and the general population. The sensor was placed on the left lateral femoral muscle abdomen, and the subject completed the test on a bicycle with increasing functional load until fatigue. Myoelectric data is analyzed by dedicated third-party software. Data analysis included characteristic changes in muscle oxygen saturation (SmO2) and total hemoglobin, and identification of local muscle oxygen load thresholds, if any. When there is a load threshold, its correlation with the ventilation threshold index obtained by the CPET system test is calculated. RESULTS: The mean age of the subjects was 34 years and the male/female ratio was 1.4. Morphologically, the curve characteristics of muscle oxygen vary greatly: S curve, platform L curve, platformless L curve, linear decline, hyperbola, inverse hyperbola, etc. Among them, the most common is the L-shaped curve with platform (45%), followed by linear (29%) and S-type (21%), the least common is the inverse hyperbola (5%). Among them, the linear muscle oxygen saturation curve is difficult to identify the muscle oxygen load threshold. The total hemoglobin curve is mainly in three categories: linear, L or V. The most common type is V type (50%), followed by L type (27%), line type is 15%, and about 8% has no obvious law. Subjects with a muscle oxygen load threshold greater than 70% reflected by SmO2 can be clearly identified. After determining the local muscle oxygen load threshold, 30% of the subjects appeared earlier than the ventilation threshold, 60% appeared simultaneously with the ventilation threshold, and 10% appeared later. Conclusion: Muscle oxygenation process and total hemoglobin changes are highly individual. NIRS technology has shown that it is a physiological feedback indicator of muscle oxygen metabolism and will have a good application prospect in future research. Excerpt from the 2015 ACSM (American Sports Science Conference) Annual Meeting Characteristic curve of muscle oxygen changes under exercise S curve (top left) L curve (top right) Linear (lower left) hyperbola (bottom right) Cosmetics are compound mixtures made from various raw materials after reasonable blending and processing. There are many types of cosmetics raw materials with different properties. According to the raw material properties and uses of cosmetics, it can be roughly divided into two categories: base raw materials and auxiliary raw materials. The former is a main raw material of cosmetics, which occupies a large proportion in cosmetic formulations, and is the main functional substance in cosmetics. The latter is responsible for shaping, stabilizing or imparting color, fragrance and other characteristics to cosmetics. These substances are not used in large amounts in cosmetic formulations, but are extremely important. Cosmetics are chemical mixtures made of natural, synthetic or extracted substances with different functions as raw materials and processed through production processes such as heating, stirring and emulsification. Collagen peptide, Arbutin, Coenzyme Q10, GSH, Cosmetic Raw Materials, lipoic acid Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualynbio.com