ABSTRACT This article sets out to discuss the material culture of traditional physical education from an ethnobiological point of view. The focus is on the use of reed, Phragmites australis Trin. ex Steud., club-rush, Schoenoplectus lacustris L., inflated skins and animal bladders when making buoyancy devices used by children and adolescents for learning to swim. As these teaching methods occurred from thousands of years ago up to very recently, it is argued that child-related practices connected with the bio-cultural domain and arising out of human-biota interaction have noticeably transcended time and societal changes.

中文翻译：

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瑞典的古代浮力装置：用芦苇，棍棒冲，膨胀的皮和动物膀胱制成的浮子

摘要本文从民族生物学的角度出发，探讨传统体育的物质文化。重点是芦苇芦苇Trin的使用。例如Steud。，club-rush，Schoenoplectus lacustris L.，制造儿童和青少年用来学习游泳的浮力设备时，皮肤和动物膀胱膨胀。由于这些教学方法是从数千年前到最近发生的，因此有人认为与生物文化领域相关的，与人-生物群系相互作用引起的与儿童有关的实践已经明显超越了时间和社会变化。