“…Human fetuses in utero assume flexion in the arms by 13 weeks, and in multiple limb joints by 20–28 weeks (Fong, Buis, Savelsbergh, & de Vries, ; Jirásek, ; Larsen, Sherman, Potter, & Scott, ). Flexion posture predominates by 36–37 weeks, with the hands contacting the face, and legs contacting the trunk (Casaer, ; Fong et al, ; Vles, Kingma, Caberg, Daniels, & Casaer, ). Semiflexed postures, presumed residual effects of prenatal constraints, may persist 1–10 days after full term birth (Beintema, ; Casaer, ; Dubowitz, Dubowitz, & Mercuri, ).…”