Fig. 1

Developmental trends of segmental trunk control from 4 to 12 months in study infants. S- static control, A- active control, R- reactive control. Numbers on the y-axis are the SATCo trunk segmental level at which control was being learnt (1 = head control, 2 = upper thoracic level, 3 = mid-thoracic, 4 = lower thoracic, 5 = upper lumbar, 6 = lower lumber, 7 = full trunk control, and 8 = full trunk control achieved). The solid line represents the medians of the group at each age group. The boxes and the whiskers represent the spread of the data within that age group. The asterisks represent outliers in that age group. Please note that the SATCo is an ordinal scale and the non-integral numbers reported in the figure were purely for statistical purposes. In real life situations, no half-level would be credited to the infants