Physical feminists believe that physical activity and fitness can serve to empower women, by helping them feel more in control of their world (self-defence, weight lifting, strength building, etc.). However, critics of physical feminism argue that encouraging women to engage in physical activity only perpetuates their sexual objectification. Critics claim that women only seem empowered when they engage in certain activities that are socially deemed "feminine", such as yoga, jogging, or aerobics, while women who engage in other sports or activities, those of a typically "masculine" nature, such as self-defence, martial arts, full contact sports, etc., are still viewed as "un-feminine" and are not empowered through the activites.