Which statement best describes 'TEK 2D'?

The statement that describes 'TEK 2D' emphasizes the importance of modifying movement during performance. This concept is integral in fitness training, as it allows individuals to adapt their movements based on their body's responses, skill levels, or specific goals during an exercise. Adjusting movements can enhance effectiveness and reduce the risk of injury, making it essential for optimizing performance and ensuring safety during workouts.

While other statements touch upon crucial aspects of training—like maintaining consistent form, increasing the duration of workouts progressively, and focusing on flexibility—they do not encapsulate the core idea behind 'TEK 2D'. This approach promotes a dynamic understanding of movement, encouraging individuals to assess and adjust their techniques in real-time, which is vital for skill development and achieving personal fitness objectives.