Blanksby B A, Wearne F K, Elliott B C
University of Western Australia, Perth, Australia.
Aust J Sci Med Sport. 1996 Sep;28(3):79-85.
Eight stages commonly used to teach diving were analysed for peak vertical velocity; vertical velocity at and following water impact and at previously recommended minimum water depths; maximum depth reached; and relationship between vertical velocity and maximum depth attained at each stage; for 13 male and 13 female children aged 6-8 years. Comparisons of mean water impact vertical velocities and maximum depths attained revealed significantly lower impact vertical velocities (F[6] = 117.39, p < 0.0001) and maximum depths (F[6] = 36.59, p < 0.0001) when performing the sit dive compared to the reference standing dive. At other stages, subjects travelled faster than the critical head velocities shown to cause adult cervical spine damage when passing through previously recommended minimum water depths.
对通常用于教授跳水的八个阶段进行了分析，以研究其峰值垂直速度；入水时及入水后以及先前建议的最小水深时的垂直速度；达到的最大深度；以及每个阶段垂直速度与达到的最大深度之间的关系；研究对象为13名6至8岁的男性儿童和13名女性儿童。平均入水垂直速度和达到的最大深度的比较显示，与参考站立式跳水相比，进行坐式跳水时入水垂直速度（F[6]=117.39，p<0.0001）和最大深度（F[6]=36.59，p<0.0001）显著更低。在其他阶段，当受试者通过先前建议的最小水深时，其行进速度比显示会导致成人颈椎损伤的临界头部速度更快。
