Decreased postural control in adolescents born with extremely low birth weight

Experimental Brain Research
Hannes PetersenPer-Anders Fransson

Abstract

The survival rates of infants born preterm with extremely low birth weight (ELBW ≤ 1000 g) have gradually improved over the last decades. However, these infants risk to sustain long-term disorders related to poor neurodevelopment. The objective was to determine whether adolescents born with ELBW have decreased postural control and stability adaptation. Twenty-nine ELBW subjects performed posturography with eyes open and closed under unperturbed and perturbed standing by repeated calf vibration. Their results were compared with twenty-one age- and gender-matched controls born after full-term pregnancy. The ELBW group had significantly decreased stability compared with controls in anteroposterior direction, both during the easier quiet stance posturography (p = 0.007) and during balance perturbations (p = 0.007). The ELBW group had similar stability decrease in lateral direction during balance perturbations (p = 0.013). Statistically, the stability decreases were similar with eyes closed and open, but proportionally larger with eyes open in both directions. Both groups manifested significant adaptation (p ≤ 0.023) to the balance perturbations in anteroposterior direction, though this adaptation process could not compensate for th...Continue Reading

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