Zemková Erika, Jeleň Michal, Schickhofer Peter, Hamar Dušan
a Department of Sports Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Slovakia.
b Sports Technology Institute, Faculty of Electrical Engineering and Information Technology , Slovak University of Technology in Bratislava , Slovakia.
Exp Aging Res. 2016 Oct-Dec;42(5):418-430. doi: 10.1080/0361073X.2016.1224665.
Background/Study Context: The study estimates the reliability of peak velocity and peak power during chair rising and chair jumping tests and their ability to discriminate between different age and physical activity level groups.
Physically active and sedentary individuals (N = 262) of different ages (young: 22.9 ± 2.0 years, range: 21-25 years; older: 63.1 ± 1.8 years, range: 61-65 years) performed, in random order, chair rising and chair jumping tests on a force plate. Randomly selected young subjects performed both tests repeatedly on two different occasions separated by 1 week. From the sitting position with the arms crossed on the chest, they either stand up completely (chair rising test), or jump as high as possible (chair jumping test).
The test-retest reliability of peak power and peak velocity during chair rising as well as chair jumping was excellent, with high intraclass correlation coefficients (ICCs; .90-.98) and low standard error of measurement (SEM; 7.0-9.1%). Post hoc analysis revealed significant differences in peak power and peak velocity between the sedentary and physically active young and older subjects. However, greater coefficients of variation for both parameters were found for chair jumping than chair rising (21.1-40.2% vs. 11.0-15.2%). Additionaly, there were moderate correlations of peak power and peak velocity between chair rising and chair jumping (r = .42-.49). There were greater within- and between-group differences in peak force and peak power and a steeper increase in their values during the initial phase of chair jumping than chair rising.
Both chair rising and chair jumping tests provide reliable data and are valid indicators of lower body power in young and older adults. However, jumping from a chair is a more sensitive measure of strength and power performance than chair rising.
背景/研究背景：本研究评估了椅子起立和椅子跳跃测试中峰值速度和峰值功率的可靠性，以及它们区分不同年龄和身体活动水平组别的能力。
不同年龄（年轻组：22.9±2.0岁，范围：21 - 25岁；老年组：63.1±1.8岁，范围：61 - 65岁）的身体活跃和久坐不动的个体（N = 262）在测力板上按随机顺序进行椅子起立和椅子跳跃测试。随机选择的年轻受试者在相隔1周的两个不同时间重复进行这两项测试。从双臂交叉于胸前的坐姿开始，他们要么完全站起来（椅子起立测试），要么尽可能高地跳跃（椅子跳跃测试）。
椅子起立和椅子跳跃过程中峰值功率和峰值速度的重测信度极佳，组内相关系数（ICC）高（0.90 - 0.98），测量标准误差低（SEM；7.0 - 9.1%）。事后分析显示，久坐不动和身体活跃的年轻及老年受试者在峰值功率和峰值速度上存在显著差异。然而，发现椅子跳跃时这两个参数的变异系数比椅子起立更大（21.1 - 40.2%对11.0 - 15.2%）。此外，椅子起立和椅子跳跃之间的峰值功率和峰值速度存在中度相关性（r = 0.42 - 0.49）。椅子跳跃初始阶段的峰值力和峰值功率在组内和组间的差异更大，且其值的增加比椅子起立更陡峭。
椅子起立和椅子跳跃测试都能提供可靠数据，并且是年轻和老年成年人下肢力量的有效指标。然而，从椅子上跳跃比椅子起立是更敏感的力量和功率表现测量方法。
