A significant decrease of QUS - t-score and SI variables from the second to third trimester of pregnancy could be shown in this study. An increasing demand of calcium and loss of bone mass density (BMD) during the phase of maximum fetal growth rate at the end of pregnancy correlates with this. Ultrasoundmeasurements showed levels for the highest risk for bonefractures during pregnancy in young primiparae without any prior bodily exercise during adolescence. Eventual later return to average-level measurements indicating bone-recovery may be caused by molecular and biochemical mechanisms as yet to be left to further investigations.
Hahn, Birgit Renate Lieselotte: Veränderung der Messergebnisse der quantitativen Ultrasonometrie (QUS) am Os calcaneusim Verlaufe der Schwangerschaft. : Philipps-Universität Marburg 2017-01-17. DOI: https://doi.org/10.17192/z2017.0008.