Abstract
[Purpose] We made a retrospective study of infants’ crawling experience to clarify its relationship with their standing posture. [Subjects and Methods] We conducted a questionnaire survey of the guardians of 38 infants with no history of orthopedic or neurologic disorders, who were aged between 3 and 6, and were attending a kindergarten. The survey items were: crawling history (yes or no), and the starting ages in months of crawling and standing while using support. The infants standing postures were captured on video, and pelvic tilt and hip internal and external rotation were assessed. [Results] Pelvic tilt was unaffected by crawling history, but the majority of infants with no history of crawling and those who stood using support before crawling had a standing posture showing internal rotation of the hip joint. [Conclusion] There is a possibility that crawling experience affects hip joint position.
