What has been improvement to abs including what?

Improvements to abdominal training have evolved with a greater emphasis on functional strength and core stability rather than just aesthetics. Modern routines incorporate a variety of exercises that engage multiple muscle groups, such as planks, medicine ball workouts, and stability ball exercises. Additionally, there is a focus on incorporating different planes of movement and varying intensity levels to enhance overall core strength and endurance. This holistic approach not only strengthens the abs but also improves overall athletic performance and injury prevention.