Larios-Tinoco José Omar, Tejeda-Castellanos Xochiquetzalli, Sánchez-Medina Carlos Maximiliano, Ortiz-Cornejo Ma Elena, Márquez-González Horacio, Martín-López María de Lourdes, Villalpando-Carrión Salvador, Gutiérrez-Camacho Claudia, Alaniz-Arcos José Luis
Physiotherapy Research Unit, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Research Department, Hospital Infantil de México Federico Gómez, Mexico City, Mexico.
BMC Musculoskelet Disord. 2025 Jan 8;26(1):31. doi: 10.1186/s12891-024-08253-9.
Alterations in spatiotemporal parameters during walking modify and limit movement capacity in children with obesity. This study aimed to describe and compare the alterations in spatiotemporal parameters in schoolchildren according to body weight during all phases of walking.
We carried out a cross-sectional study of 94 schoolchildren aged 6 to 12 years and divided them into three study groups (normal weight, overweight, and obesity). Subsequently, we performed a gait study using a 3D motion analysis system and extracted the spatiotemporal parameters, and we compared the parameters obtained between the study groups.
The stride length in both limbs was lower in schoolchildren with obesity compared to the overweight group, with a mean difference of 0.08 m on the right side (CI 95% 0.01-0.16; p = 0.02) and 0.09 m on the left side (CI 95% 0.01-0.17; p = 0.02); also, on the left side, the swing speed (m/s) was lower in the children with obesity than in the normal weight group, with a mean difference of 0.23 m/s (CI 95% 0.03-0.43; p = 0.01). Lastly, the step width (m) was greater in the group of schoolchildren with obesity compared to the normal weight group, with a difference of 0.05 m (CI 95% 0.01-0.09; p = 0.01). A moderate positive correlation was found between the width of the step and the weight gain, r = 0.41 (p < 0.001). However, we found a poor correlation between right stride length (m), left side swing speed (m/s), left stride length (m), and weight gain, r = 0.26 (p = 0.01), r= -0.21 (p = 0.04) and r = 0.21 (p = 0.04), respectively.
Spatiotemporal parameters such as stride length, swing speed, and step width were more altered in schoolchildren with obesity and correlated with body weight gain.
行走过程中时空参数的改变会影响并限制肥胖儿童的运动能力。本研究旨在描述和比较学龄儿童在行走各阶段根据体重的时空参数变化。
我们对94名6至12岁的学龄儿童进行了横断面研究，并将他们分为三个研究组（正常体重、超重和肥胖）。随后，我们使用三维运动分析系统进行步态研究，提取时空参数，并比较研究组之间获得的参数。
肥胖学龄儿童双下肢的步长均低于超重组，右侧平均差异为0.08米（95%可信区间0.01 - 0.16；p = 0.02），左侧为0.09米（95%可信区间0.01 - 0.17；p = 0.02）；此外，在左侧，肥胖儿童的摆动速度（米/秒）低于正常体重组，平均差异为0.23米/秒（95%可信区间0.03 - 0.43；p = 0.01）。最后，肥胖学龄儿童组的步宽（米）大于正常体重组，差异为0.05米（95%可信区间0.01 - 0.09；p = 0.01）。步宽与体重增加之间存在中度正相关，r = 0.41（p < 0.001）。然而，我们发现右侧步长（米）、左侧摆动速度（米/秒）、左侧步长（米）与体重增加之间的相关性较差，分别为r = 0.26（p = 0.01）、r = -0.21（p = 0.04）和r = 0.21（p = 0.04）。
肥胖学龄儿童的步长、摆动速度和步宽等时空参数变化更大，且与体重增加相关。
