borderline significancep = 0.058
4 with 5 months, 5 with 6 months, and so on, showed a significant time effect in the static, active and reactive trunk control of the infants at all ages (all p < 0.05), with the exception of a borderline significance in the active control between 4 and 5 months (Chi-square = 3.6, p = 0.058) and reactive control between 8 and 9 months (Chi-square = 3.6, p = 0.058).