Which type of exercise is least beneficial for enhancing flexibility?

High-impact aerobics is least beneficial for enhancing flexibility because its primary focus is on cardiovascular endurance and strength rather than increasing the range of motion in muscles and joints. High-impact aerobics involves rapid and repetitive movements that typically do not include the sustained stretches needed to improve flexibility effectively.

In contrast, dynamic stretching involves moving parts of your body through a full range of motion, which can help warm up muscles and improve flexibility as part of a workout routine. Static stretching, where you hold a stretch for a period of time, is directly targeted toward increasing flexibility by elongating muscles. Yoga incorporates a variety of poses and stretches aimed at not only enhancing flexibility but also promoting balance, strength, and relaxation. Each of these other options explicitly focuses on promoting flexibility through distinct techniques that encourage muscle elongation and joint mobility.