Can doing squats help you dilate ?

I was 40 weeks and 3 days when I went into L&D but was only 2 cm dilated the nurse had me get up and walk around the hospital for about 50 minuets, when we got back I went into the bathroom and was doing squats while we waited for her to return when she checked me again I was 4 cm so they admitted me. Could it of been the squats that helped ? Or was it just because I walked . I'm 39 weeks 4 days getting induced next week