Study participants were randomly assigned to the ET or control group in a 3:2 ratio. The ET program took place in an indoor exercise facility and was supervised by exercise physiology technicians. The ET consisted of three consecutive phases, each 3 months long. Participants attended exercise sessions three times per week, completing 36 sessions before moving on to the next phase. The first phase concentrated on flexibility, balance, coordination, speed of reaction, and strength, the second phase added resistance training, and the third phase added endurance training. The control group did nine exercises focusing on flexibility at home two to three times per week for 9 months.