Francis K, Feinstein R
Division of Physical Therapy, University of Alabama, Birmingham 35294.
South Med J. 1991 Feb;84(2):169-74. doi: 10.1097/00007611-199102000-00005.
Recently an anatomic model was reported for adults that standardized the platform height for step tests using an individual's stature and a specified hip angle. In order to determine if the model could be used to predict the platform height for children, platform heights were calculated and hip angles were measured in 146 boys and 140 girls ages 6 to 18 years who were divided into four age groups (6 to 8, 9 to 11, 12 to 15, and 16 to 18 years old). There were no statistical differences between measured and calculated hip angles in any of the age groups. In order to determine the validity for predicting maximal oxygen consumption from stepping using a calculated platform height, three step tests were employed using one platform height and stepping frequencies of 22, 26, or 30 ascents/min. Each of the tests was administered to 93 6- to 18-year-olds. Correlation coefficients between the 15-second recovery heart rate after stepping and maximal oxygen consumption measured on a treadmill were .80 at 30 ascents/min, .79 at 26 ascents/min, and .81 at 22 ascents/min. Each of the correlation coefficients was significant at the P less than .01 level. It can be concluded that the model is valid for standardizing the platform height for children for use with a single stage step test for estimating maximal oxygen consumption.
最近有报道称，针对成年人建立了一种解剖学模型，该模型根据个体身高和特定的髋关节角度对台阶测试的平台高度进行了标准化。为了确定该模型是否可用于预测儿童的平台高度，研究人员计算了146名6至18岁男孩和140名6至18岁女孩的平台高度，并测量了他们的髋关节角度，这些孩子被分为四个年龄组（6至8岁、9至11岁、12至15岁和16至18岁）。在任何年龄组中，测量的髋关节角度与计算得出的髋关节角度之间均无统计学差异。为了确定使用计算出的平台高度通过台阶测试预测最大耗氧量的有效性，研究人员采用了三种台阶测试，使用一个平台高度，台阶频率分别为每分钟22次、26次或30次上升。每项测试均对93名6至18岁的儿童进行。台阶测试后15秒恢复心率与跑步机上测量的最大耗氧量之间的相关系数在每分钟30次上升时为0.80，在每分钟26次上升时为0.79，在每分钟22次上升时为0.81。每个相关系数在P小于0.01水平时均具有显著性。可以得出结论，该模型对于标准化儿童的平台高度是有效的，可用于单阶段台阶测试以估计最大耗氧量。
