What training method focuses on the body's efficiency to move its own mass?

Bodyweight training is a method that emphasizes the use of one's own body mass to develop strength, mobility, and overall fitness. This training approach focuses on improving the body's efficiency to perform movements without the need for additional weights or equipment. Exercises such as push-ups, pull-ups, squats, and planks are prime examples of bodyweight training, as they rely solely on the individual’s own weight to create resistance.

This training method is particularly effective for enhancing functional strength, improving coordination, and building endurance. By mastering bodyweight exercises, individuals learn to control their movements and develop a better awareness of their body in space, which is a valuable skill in many physical activities and sports. Bodyweight training can be adapted to suit various fitness levels, making it accessible to beginners while still providing challenges for more advanced practitioners.

Other training methods mentioned may utilize external equipment and not solely focus on the body's own mass for resistance—making bodyweight training the most fitting answer for this question.