Technology can enhance personal training and fitness tracking through devices like fitness trackers and mobile apps. These technologies provide real-time data on heart rate, calories burned, and overall performance, helping individuals set and achieve fitness goals. Technologies also enable customized workout plans based on an individual's progress, nutrition tracking, and accountability through virtual coaching. By making it easier to monitor and analyze fitness metrics, technology plays a crucial role in motivating users to stay active and informed, ultimately leading to improved health outcomes and enhanced performance.