Obesity has been associated with poorer sensorimotor performance. However, it remains unclear whether these obesity-related impairments can be mitigated by practice. In the present study, we sought to investigate the effects of practice on performing and learning a temporal estimation task, in women with and without obesity. The experimental task consisted of synchronizing the arrival of two rectangles at a target point. Limited to the pressing of a switch, the task was intended to minimize possible muscular fatigue, self-generated perturbations to balance and the need to accelerate/decelerate body segments. Participants were allowed to choose the displacement velocity of the rectangle they controlled and were informed that they would not be offered any choice over it during a test to come. To control for the effect of different body positions on sensorimotor performance and learning, the 19 women with obesity (BMI = 40.0 + 7.33, age = 44.2 + 6.6) and 20 without obesity (BMI = 22.3 + 1.95, age = 43 + 6.9) were assigned into 4 groups, according to their BMI and body position assumed during practice (standing upright with feet together or sitting). As no significant differences concerning body position were found, the data were reanalysed disregarding this factor. Results revealed that while both groups reduced errors during the Acquisition, participants with obesity showed poorer performance (Acquisition) and sensorimotor learning (Transfer). Given the experimental task and adopted procedures, our results tend to support the hypothesis that hindered perception and/or integration of sensory information is associated with obesity.

肥胖与感觉运动功能较差有关。然而，尚不清楚这些肥胖相关的损伤是否可以通过实践减轻。在本研究中，我们试图调查实践对有肥胖和无肥胖妇女的执行和学习时间估算任务的影响。实验任务包括同步两个矩形在目标点的到达。仅限于按动开关，该任务旨在最大程度地减少可能的肌肉疲劳，自平衡产生的扰动以及加速/减速身体部位的需要。允许参与者选择他们控制的矩形的位移速度，并被告知在即将进行的测试中将不会为他们提供任何选择。为了控制不同体位对感觉运动表现和学习的影响，肥胖的19名女性（BMI = 40.0 + 7.33，年龄= 44.2 + 6.6）和20名没有肥胖的女性（BMI = 22.3 + 1.95，年龄= 43 + 6.9）根据他们的BMI和练习时假定的身体姿势（分为两脚站立或坐直）分为4组。由于未发现有关身体位置的显着差异，因此不考虑该因素重新分析数据。结果显示，尽管两组都减少了采集过程中的错误，但肥胖参与者表现出较差的表现（采集）和感觉运动学习（转移）。给定实验任务和采用的程序，我们的结果倾向于支持以下假设：肥胖与感觉信息的感知和/或整合障碍有关。