Physical activity alters limb bone structure but not entheseal morphology.
Physical activity alters limb bone structure but not entheseal morphology.
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DOI：
10.1016/j.jhevol.2017.02.001
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发表时间：
2017-06
影响因子：
3.2
通讯作者：
Konow N
中科院分区：
文献类型：
--
作者：
Wallace IJ;Winchester JM;Su A;Boyer DM;Konow N
对古代人类骨骼遗骸的研究通常基于这样的假设，即可以推断具有强健四肢骨骼和/或皱纹、肥大附着点的个体在生活中具有高度的体力活动。在这里，我们通过测量运动对火鸡肢体骨结构和附着点形态的影响来实验性地测试这一假设。生长中的雌性动物接受为期10周的磨粉机运行方案治疗或作为对照。实验结束后，分别在中段骨干和远端骨骺中使用μCT对股骨皮质和松质骨结构进行定量，并在外上髁中对附着点形态进行定量。研究结果表明，高水平的体力活动影响肢体骨结构，但没有附着点形态。具体而言，动物进行运动显示增强骨干和骨小梁结构相对于对照组，但没有显着差异，检测实验组之间的附着点表面形貌。这些研究结果表明，骨干和小梁结构是更可靠的代理比附着点形态推断古代人类的身体活动水平的骨骼遗骸。
Studies of ancient human skeletal remains frequently proceed from the assumption that individuals with robust limb bones and/or rugose, hypertrophic entheses can be inferred to have been highly physically active during life. Here, we experimentally test this assumption by measuring the effects of exercise on limb bone structure and entheseal morphology in turkeys. Growing females were either treated with a treadmill-running regimen for 10 weeks or served as controls. After the experiment, femoral cortical and trabecular bone structure were quantified with μCT in the mid-diaphysis and distal epiphysis, respectively, and entheseal morphology was quantified in the lateral epicondyle. The results indicate that elevated levels of physical activity affect limb bone structure but not entheseal morphology. Specifically, animals subjected to exercise displayed enhanced diaphyseal and trabecular bone architecture relative to controls, but no significant difference was detected between experimental groups in entheseal surface topography. These findings suggest that diaphyseal and trabecular structure are more reliable proxies than entheseal morphology for inferring ancient human physical activity levels from skeletal remains.
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作者：
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DOI：
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