Aikido practice increased stamina, flexibility, and muscle development, but the techniques themselves do not depend on strength for effectiveness. Since Aikido's movements and techniques arise from the most efficient utilization of the entire being, great power can be developed by the practitioner, regardless of physical strength. Aikido practice encompasses a broad range of training styles, and allows people to train based on their individual stage of development. As a result, Aikido can be practiced by men, women and children of all ages.