“The activities that brought on their first EIO were ab exercises (sit-ups or crunches), climbing poles or ropes, weight lifting, running, stretching, yoga, aerobics, swimming, chin-ups, pull-ups, dance, jazzercise, elliptical machine and even floor exercises. Ab workouts were by far the most common means of achieving the first coregasm: 45 percent of women reported it, versus 9 percent for climbing. And fully half of the group said they had experienced an orgasm during ab exercises in the past 90 days. Most of the women, unsurprisingly, said coregasms made them feel happy, although they also reported being embarrassed sometimes.”

Jennifer Abbasi (same source as above) wrote …

“For those of us who are interested in experiencing a coregasm, the most common abdominal exercise cited by the study participants involved the ‘captain’s chair,’ which consists of a rack with padded arm rests and back support that allows the legs to hang free. The exercise consists of lifting the knees toward the chest, or lifting the legs toward a ninety-degree angle with the body, often in multiple sets of 10-15 repetitions.”