XXXX affects postural control and aiming performance during an upper limb movement.

@entity1 @entity9107 @entity28
UNASSIGNED: Obesity reduces the efficiency of postural and movement control mechanisms. However, the effects of @entity28 on a functional motor task and postural control in standing and seated position have not been closely quantified among @entity1 . The aim of this study is to examine the effects of @entity28 on the execution of aiming tasks performed in standing and seated conditions in @entity1 . Twelve healthy weight @entity1 and eleven @entity28 @entity1 aged between 8 and 11 years pointed to a target in standing and seated position. The difficulty of the aiming task was varied by using 2 target sizes (1.0cm and 5.0cm width; pointing to the smaller target size needs a more precise movement and constitutes a more difficult task). Hand movement time (MT) and its phases were measured to quantify the aiming task. Mean speed of the center of pressure displacement ( @entity9107 speed) was calculated to assess postural stability during the movement. Obese @entity1 had significantly higher MTs compared to healthy-weight @entity1 in seated and standing conditions explained by greater durations of deceleration phase when aiming. Concerning the @entity9107 speed during the movement, @entity28 @entity1 showed significantly higher values when standing compared to healthy-weight @entity1 . This was also observed in the seated position. In conclusion, @entity28 adds a postural constraint during an aiming task in both seated and standing conditions and requires @entity28 @entity1 to take more time to correct their movements due to a greater postural instability of the body when pointing to a target with the upper-limb.
