Słomka Kajetan J, Michalska Justyna, Marszałek Wojciech, Bacik Bogdan, Juras Grzegorz
Institute of Sport Sciences, Department Human Motor Behavior, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.
Institute of Sport Sciences, Kinesiology Laboratory, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland.
MethodsX. 2019 Dec 4;7:10-16. doi: 10.1016/j.mex.2019.11.029. eCollection 2020.
Functional stability has been studied in diverse populations, yet the possibility to compare the results across them and the knowledge about actual performance referenced to the maximum capacity is limited. Our aim was to improve the functional limits of stability testing and introduced Forward Functional Stability Indicator (FFSI) as a reliable measure of functional stability. The study participants were not able to cross the projected forward anatomical stability limit (FASL). It is located at the level of first metatarsophalangeal joints and should be considered a mechanical limit of the maximal voluntary centre of foot pressure (COP) excursion (MVE). It was only true when the whole feet were in contact with the ground. There were statistically significant differences in limits of stability (LOS) test results in the conditions when the heels were raised and the toes muscles were contracted isometrically. The proposed forward functional stability indicator (FFSI) is a highly reliable measure of functional stability, which provides information about the actual performance with reference to maximum capacity and is easy to compare across normal and clinical populations. •The proposed forward functional stability indicator (FFSI) is a highly reliable measure of functional stability.•FFSI provides information about the actual performance with reference to maximum capacity and is easy to compare across normal and clinical populations.•The forward anatomical stability limit (FASL) is located at the level of first metatarsophalangeal joints and should be considered a mechanical limit of the maximal voluntary centre of pressure (COP) excursion when certain measurement criteria are met.
功能稳定性已在不同人群中进行了研究，但跨人群比较结果的可能性以及关于参照最大能力的实际表现的知识是有限的。我们的目标是改进稳定性测试的功能极限，并引入前向功能稳定性指标（FFSI）作为功能稳定性的可靠度量。研究参与者无法越过预计的前向解剖学稳定性极限（FASL）。它位于第一跖趾关节水平，应被视为最大自主足底压力中心（COP）偏移（MVE）的机械极限。只有当双脚都与地面接触时才成立。在脚跟抬起且脚趾肌肉等长收缩的情况下，稳定性极限（LOS）测试结果存在统计学上的显著差异。所提出的前向功能稳定性指标（FFSI）是功能稳定性的高度可靠度量，它提供了关于参照最大能力的实际表现的信息，并且易于在正常人群和临床人群中进行比较。•所提出的前向功能稳定性指标（FFSI）是功能稳定性的高度可靠度量。•FFSI提供了关于参照最大能力的实际表现的信息，并且易于在正常人群和临床人群中进行比较。•当满足某些测量标准时，前向解剖学稳定性极限（FASL）位于第一跖趾关节水平，应被视为最大自主压力中心（COP）偏移的机械极限。
