ABSTRACT The anterior band of the medial collateral ligament (MCL) is an important stabilizer for valgus stress at the elbow. When practised intensively and repetitively, activities using overhead throwing motions can injure this ligament and its insertion. If these activities occur when the epiphyses are not yet fully fused, traction forces can result in bony detachments in the area of the MCL insertion. This study was based on commingled graves found in 16 Middle and Late Neolithic caves from Belgium. We recorded the presence of MCL lesions on 196 humeri and studied the relation between lesions, siding, and robusticity. 5.1% of the humeri displayed MCL lesions, which affected only the right robust humeri. Our results suggest a social division in throwing activities in Belgium during the Neolithic. They also suggest that throwing practice started from a young age, which invites us to re-examine the role of teenagers in prehistoric societies.

中文翻译：

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来自默兹河流域（比利时，公元前 4500-2500 年）的新石器时代人群的投掷活动，重点关注青少年

摘要 内侧副韧带 (MCL) 的前带是肘部外翻应力的重要稳定器。当密集和重复练习时，使用头顶投掷动作的活动可能会损伤韧带及其插入。如果这些活动发生在骨骺尚未完全融合时，牵引力会导致 MCL 插入区域的骨脱离。这项研究基于在比利时 16 个新石器时代中期和晚期洞穴中发现的混合坟墓。我们记录了 196 个肱骨上 MCL 病变的存在，并研究了病变、壁板和健壮性之间的关系。5.1% 的肱骨显示 MCL 病变，仅影响右侧强壮的肱骨。我们的研究结果表明，新石器时代比利时的投掷活动存在社会分化。