Which activity primarily develops flexibility?

Yoga primarily develops flexibility because it incorporates a series of postures and stretches designed to lengthen and improve the range of motion in various muscle groups and joints. The practice emphasizes controlled movements and breathing techniques that help to gradually increase flexibility over time. Through consistent practice, individuals can achieve a better overall flexibility which can also aid in injury prevention and enhance overall body function.

In contrast, weightlifting focuses more on strength training, targeting specific muscle groups to increase muscle size and strength rather than flexibility. Running promotes cardiovascular fitness and endurance but does not primarily focus on enhancing flexibility. Cycling, while good for leg strength and cardiovascular fitness, generally does not contribute significantly to flexibility development compared to yoga.