The document discusses the biomechanical analysis of sports performance using Myontec's wearable technology, which monitors athletes' internal and external loads during training in a non-invasive manner. It highlights the benefits of combining electromyographic signals with inertial sensors to assess muscle load and imbalances, and includes evaluations of various exercises and test results from multiple athletes. Additionally, the document details methodologies for analyzing training loads and emphasizes the importance of the sacroiliac joint in performance assessment.