Complex sentence: Due to injuries sustained from his martial arts training he sought medical attention in the United States and began to study the different physical therapy techniques, as a result, he began to study anatomy, physiology and human-movement sciences.
Split into simpler sentences: Due to injuries sustained from his martial arts training he sought medical attention in the United States and began to study the different physical therapy techniques. As a result, he began to study anatomy, physiology and human-movement sciences.