I've been trying to figure out if 'Yogi' and 'Chinese jump rope' are the same thing - I don't think they are, based on on what I see in the linked videos. As I recall Yogi in the 1960s in Ontario, two girls would put the long elastic around their ankles, then one girl would do the in-and-out and over and back - taking a foot out then catching the elastic on the inside of the ankle and carrying it overtop the other side of the elastic - in various combinations. One or both girls would chant in time, although I can't remember any of the rhymes. A girl could play it by herself by stretching the one end of the elastic around, for example, chair legs.