Department of Physiotherapy, College of Rehabilitation, Kasprzaka St. 49, 01-234 Warsaw, Poland.
Department of Human Biology, Józef Piłsudski University of Physical Education in Warsaw Marymoncka St. 34, 00-968 Warsaw, Poland.
Homo. 2021 Jun 25;72(2):149-157. doi: 10.1127/homo/2021/1357.
The aim of this cross-sectional study was to evaluate the relationship between the condition of bone mineral density and body composition and the adapted physical activity, the number of past fractures and selected somatic characteristics of girls with myelomeningocele (MMC). The study examined 37 girls with myelomeningocele (MMC) at the age of 11.9 ± 1.8 years. Bone mineral content (BMC) and bone mineral density (BMD) of the forearm were measured by dual-energy X-ray absorptiometry (DXA). Anthropometric measurements were also made and selected anthropological indices were calculated. A percentage of body fat, fat mass (FM in kg) and fat-free body mass (FFM in kg) were calculated, whereas the incidence of fractures of lower and upper limbs was evaluated during interviews. Underestimated BMD characteristic for osteopenia occurred only in physically inactive girls. Low % age-matched was observed in all physically inactive girls, whereas it was less pronounced in physically active girls. Statistically significant positive correlations were found between BMD and: body height, sitting height, body weight, BMI, fat mass and fat-free mass. Regardless of physical activity, significantly higher Z-score values (F = 12.9; ≤ 0.001) were observed in girls who had not suffered from fractures compared to their peers who reported one or more past fractures in different skeletal locations. Active participation in physical activity of children with MMC may be a factor determining good bone tissue condition. The prevention of fractures in children in wheelchairs can be an important part of maintaining healthy bone tissue and a better quality of life.
本横断面研究旨在评估骨矿物质密度和身体成分与适应性体力活动、既往骨折次数以及脊髓脊膜膨出女孩（MMC）某些躯体特征之间的关系。研究共纳入 37 名年龄为 11.9 ± 1.8 岁的脊髓脊膜膨出女孩。采用双能 X 射线吸收法（DXA）测量前臂的骨矿物质含量（BMC）和骨矿物质密度（BMD）。还进行了人体测量学测量，并计算了一些人体测量学指数。计算了体脂百分比、脂肪量（FM，kg）和去脂体重（FFM，kg），通过访谈评估了四肢骨折的发生率。只有体力活动不足的女孩出现了特征性的骨密度降低，表现为低骨量。所有体力活动不足的女孩都出现了低年龄匹配百分比，而在体力活动活跃的女孩中，这种情况则不太明显。BMD 与以下指标呈显著正相关：身高、坐高、体重、BMI、脂肪量和去脂体重。无论体力活动如何，与报告有一处或多处不同骨骼部位既往骨折的同龄人相比，未发生骨折的女孩的 Z 评分值（F = 12.9； ≤ 0.001）均更高。脊髓脊膜膨出患儿积极参与体力活动可能是决定骨骼组织良好状态的一个因素。预防轮椅中儿童发生骨折可能是维持健康骨骼组织和提高生活质量的重要部分。
