Abstract
[Purpose] The spinal column alignment in sit-to-stand from the sitting posture to anterior tilt of the trunk was compared between males and females. [Subjects and Methods] The subjects were 47 (15 males, 32 females) community-dwelling elderly. Measurements were made in the upright and slump positions in chair sitting, and trunk forward inclination during sit-to-stand. The spinal alignment of each condition was measured using a spinal mouse. [Results] In all the positions, the sacral tilt angle was significantly more inclined forward in women than in men. In the upright sitting position and just before lift-off, the lumbar angle showed significantly more lordosis in women than in men. There was no significant difference in the amount of change between the conditions. [Conclusion] The results suggest that women always have greater anterior tilt of the pelvis than men.