Functional training focuses on multi-joint movements that integrate muscle groups instead of isolating single joints or muscles. It aims to mimic the natural movements of everyday life and sports through exercises like squats, lunges, and pulling motions. The goals are to increase mobility, activate the core and nervous system, and train the body for life outside of the gym by emphasizing quality over quantity of movement. A functional training program should blend concepts from sports performance, consider an individual's sport demands, and progress from simple bodyweight exercises to more complex multi-planar movements.