During pregnancy, anthropometric and physiological changes can result in difficulty reaching for and lifting everyday objects. The aims of this study were to determine the changes in sagittal plane anterior reach space (SPARS) and shoulder/elbow strength requirements throughout pregnancy. Seventeen participants were tested through a longitudinal observational cohort study between 16 and 36 weeks gestation in four-week intervals. A 25% decrease in SPARS was observed at the L3-4 torso height. Combined with arm mass increases, shoulder and elbow moment requirements at the minimum and maximum static reach distances significantly increased. However, inverse dynamics analysis determined that mass gains in the arm alone only minimally impact dynamic shoulder moments. Additionally, torso flexion increases throughout pregnancy demonstrates that women are attempting to compensate for decreased SPARS, possibly indicating the additional perceptual importance of reach space in accommodations for pregnant workers.

在怀孕期间，人体测量和生理变化可能导致难以拿取和举起日常物品。本研究的目的是确定整个怀孕期间矢状面前伸间隙 (SPARS) 和肩/肘力量要求的变化。17 名参与者在妊娠 16 至 36 周之间以 4 周的间隔通过纵向观察性队列研究进行了测试。在 L3-4 躯干高度观察到 SPARS 减少了 25%。结合手臂质量的增加，最小和最大静态伸展距离的肩部和肘部力矩要求显着增加。然而，逆动力学分析确定仅手臂的质量增加对动态肩部力矩的影响很小。此外，