Faculty of Health and Sport Science (FCSD), Department of Physiatry and Nursing, Universidad de Zaragoza, Ronda Misericordia 5, 22001, Huesca, Spain.
GENUD (Growth, Exercise, Nutrition and Development) Research Group, Zaragoza, Spain.
Osteoporos Int. 2018 Dec;29(12):2693-2701. doi: 10.1007/s00198-018-4731-2. Epub 2018 Oct 17.
This study aims to analyze the impact of participation in vigorous physical activity as it can promote a healthy bone development. Adolescents who increased their participation in vigorous physical activity showed higher improvements in bone parameters compared to those who did not, which highlights the relevance of vigorous physical activity engagement.
The main purpose of the study was to analyze the effects of different patterns of vigorous physical activity (VPA) on bone development.
One-week accelerometry registers and dual-energy X-ray absorptiometry scans at the whole body, hip, and lumbar spine of 140 healthy male adolescents (11-13 years, at baseline) were performed twice with a 1-year interval between measurements. Four patterns of VPA evolution ("low-low," "low-high," "high-low," and "high-high") and three patterns of bone growth ("optimal," "mean," and "reduced") were defined according to the median participation in VPA and a cluster analysis of the longitudinal changes in BMC and BMD in all sites measured, respectively. Bone mineral parameters were adjusted for skeletal age and body weight prior to statistical comparison among groups.
Participants in the "low-high" group had greater adjusted BMD increases at both the femoral neck and lumbar spine when compared to the "low-low" group (estimated mean (95% CI) 0.066 (0.047-0.085) vs. 0.034 (0.021-0.047) g/cm and 0.074 (0.054-0.093) vs. 0.049 (0.035-0.062) g/cm respectively, both p < 0.05). Femoral neck BMD adjusted increase was also different between the "high-high" and the "high-low" groups (0.053 (0.041-0.066) vs. 0.030 (0.011-0.049) g/cm, p < 0.05). Additionally, a higher percentage of "optimal" growth was found in the "low-high" group than in the "low-low" and "high-low" categories (36.3, 12.5 and 13.6% respectively, p < 0.05).
Engaging in VPA as well as maintaining high levels of VPA during puberty is associated with greater gains in bone mass, which can have an impact in future bone health.
本研究旨在分析参与剧烈身体活动的影响，因为它可以促进健康的骨骼发育。与不参与剧烈身体活动的青少年相比，增加参与剧烈身体活动的青少年的骨参数改善更高，这凸显了参与剧烈身体活动的重要性。
本研究的主要目的是分析不同模式的剧烈身体活动（VPA）对骨骼发育的影响。
对 140 名健康男青少年（11-13 岁，基线时）进行为期一周的加速度计登记和全身、髋关节和腰椎的双能 X 线吸收法扫描，两次测量之间间隔 1 年。根据 VPA 中位数和所有部位 BMC 和 BMD 纵向变化的聚类分析，定义了四种 VPA 演变模式（“低-低”、“低-高”、“高-低”和“高-高”）和三种骨生长模式（“最佳”、“平均”和“减少”）。在组间进行统计比较之前，对骨骼年龄和体重进行了骨矿物质参数调整。
与“低-低”组相比，“低-高”组股骨颈和腰椎的 BMD 增加量更大（校正均值（95%CI）分别为 0.066（0.047-0.085）和 0.074（0.054-0.093）g/cm3，均 p<0.05）。与“高-低”组相比，“高-高”组股骨颈 BMD 校正增加量也不同（0.053（0.041-0.066）和 0.030（0.011-0.049）g/cm3，p<0.05）。此外，与“低-低”和“高-低”组相比，“低-高”组中“最佳”生长比例更高（分别为 36.3%、12.5%和 13.6%，p<0.05）。
在青春期参与剧烈身体活动并保持高水平的剧烈身体活动与更大的骨量增加有关，这可能对未来的骨骼健康产生影响。
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