180 and 210 min of hypoxia ischemia at postnatal day 3 mimic sensorimotor impairments observed in preterm infants. Hypoxia ischemia causes reduction of cross-sectional area of biceps brachii and tibialis anterior muscle. Striatal volume loss correlates with motor behavior deficits. Lesion to the striatum correlates with muscle alterations after hypoxia ischemia.