Title: Vastus lateralis architecture changes during pregnancy - a longitudinal study Authors: Marie Elena Bey, Robert Marzilger, Larry Hinkson, Adamantios Arampatzis, Kirsten Legerlotz Description: This README file describes the data sets accompanying this study. Data file: "Muscle_data_Bey_Marzilger_Hinkson_Arampatzis_Legerlotz.xlsx" Data are presented in worksheets for the early pregnancy (EP), late pregnancy (LP), postpartum period (PP) and the non-pregnant women (Controls). Data are listed in columns A-AE in the following order: Participant Week Age [years] Body mass [kg] Body height [cm] Body mass index [kg/m^2] Thigh perimeter[cm] Femur length [cm] Ramp1 knee extensor moment [Nm] Ramp2 knee extensor moment [Nm] Ramp3 knee extensor moment [Nm] Ramp4 knee extensor moment [Nm] Ramp5 knee extensor moment [Nm] Mean knee extensor moment [Nm] Normalized moment [Nm/kg] Fascicle length video 1 [mm] Normalized fascicle length video 1 Muscle thickness video 1 [mm] Pennation angle video 1 [°] Fascicle length video 2 [mm] Normalized fascicle length video 2 Muscle thickness video 2 [mm] Pennation angle video 2 [°] Mean fascicle length [mm] Mean normalized fascicle length Mean muscle thickness [mm] Mean pennation angle [°] Skeletal muscle mass [kg] Fat mass [kg] Total body water [l] Intracellular water [l] Extracellular water [l] Relative skeletal muscle mass [%] Relative fat mass [%] Relative total body water [%]