2016 Volume 31 Issue 5 Pages 677-681
[Purpose] The purpose of this study was to verify the influence of ingesting water and dietary supplements on chair-sitting posture. [Subjects and Methods] The subjects were 10 healthy young males. We measured their body sway with a stabilometer and the position of 9 landmarks attached to their upper body with a three-dimensional motion analysis system. Measurements were conducted for ninety seconds before drinking water or eating dietary supplement, just after drinking or eating, and 150, 300, and 450 seconds after drinking or eating. [Results] Compared to the initial condition, body sway increased significantly after drinking water. The position of landmarks on C7 and Th7 moved significantly anterior just after drinking water compared to the other measurement times. There was no significant change of landmarks after eating dietary supplement. [Conclusion] Change of weight or location in the visceral organs might have been larger when drinking water than when eating supplement.
