Used in biomedical research to quantitatively measure myosin protein levels in rat tissue samples, particularly in studies related to muscle function, cardiac health, and neuromuscular diseases. The kit enables researchers to assess muscle damage or degeneration by detecting myosin concentration in serum, heart, skeletal muscle, or experimental cell cultures. It is commonly applied in preclinical studies involving myocardial infarction, muscular dystrophy, and drug toxicity testing where accurate measurement of muscle-specific proteins is critical. The ELISA format allows for high-throughput analysis with high sensitivity and specificity, making it a valuable tool in both academic and pharmaceutical research settings.