The book "Hip Muscles Strength and Patellofemoral Pain Syndrome" offers a comprehensive analysis of the factors that can lead to patellofemoral pain syndrome. It is aimed at sports physiotherapists and professionals in the fields of orthopedics and sports medicine who wish to gain a better understanding of this common condition. The author, Ajay Kumar Upadhyay, highlights various causes, including biomechanical aspects such as the Q-angle, the position of the patella, and the muscles of the thigh. By combining theoretical knowledge with practical approaches, the book aims to help professionals develop effective treatment strategies and improve their patients' quality of life. The information is up-to-date and provides valuable insights into the treatment and prevention of patellofemoral pain.