Sport and Exercise Science Research Centre, School of Applied Sciences, London South Bank University, London, United Kingdom.
Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Berlin, Germany; Berlin School of Movement Science, Humboldt-Universität zu Berlin, Berlin, Germany.
J Biomech. 2021 Aug 26;125:110584. doi: 10.1016/j.jbiomech.2021.110584. Epub 2021 Jun 24.
The ability to effectively increase the base of support is crucial to prevent from falling due to stability disturbances and has been commonly assessed using the forward-directed lean-and-release test. With this multicentre study we examined whether the assessment of stability recovery performance using two different forward lean-and-release test protocols is reliable in adults over a wide age range. Ninety-seven healthy adults (age from 21 to 80 years) were randomly assigned to one out of two lean angle protocols: gradual increase to maximal forward-lean angle (maximal lean angle; n = 43; seven participants were excluded due to marker artefacts) or predefined lean angle (single lean angle; n = 26; 21 participants needed to be excluded due to multiple stepping after release or marker artefacts). Both protocols were repeated after 0.5 h and 48 h to investigate intra- and inter-session reliability. Stability recovery performance was examined using the margin of stability at release (MoS) and touchdown (MoS) and increase in base of support (BoS). Intraclass correlation coefficients (confidence intervals at 95%) for the maximal lean angle and for the single lean angle were respectively 0.93 (0.89-0.96) and 0.94 (0.89-0.97) in MoS, 0.85 (0.77-0.91) and 0.67 (0.48-0.82) in MoS and 0.88 (0.81-0.93) and 0.80 (0.66-0.90) in BoS, with equivalence being revealed for each parameter between all three measurements (p < 0.01). We concluded that the assessment of stability recovery performance parameters in adults over a wide age range with the means of the forward lean-and-release test is reliable, independent of the used lean angle protocol.
有效增加支撑基础对于防止因稳定性干扰而摔倒至关重要，通常使用向前倾斜释放测试进行评估。通过这项多中心研究，我们研究了在广泛年龄范围内的成年人中，使用两种不同的向前倾斜释放测试协议评估稳定性恢复性能是否可靠。97 名健康成年人（年龄 21 至 80 岁）被随机分配到两种倾斜角度协议之一：逐渐增加到最大向前倾斜角度（最大倾斜角度；43 名参与者中有 7 名因标记伪影而被排除）或预定义的倾斜角度（单一倾斜角度；26 名参与者中有 21 名因释放后多次跨步或标记伪影而被排除）。两种协议在 0.5 小时和 48 小时后重复进行，以研究内和间测试的可靠性。使用释放时的稳定性恢复性能稳定性恢复性能使用释放时的稳定性恢复性能稳定性恢复性能（MoS）和触地点（MoS）以及支撑基础的增加（BoS）来检查。最大倾斜角度和单一倾斜角度的组内相关系数（95%置信区间）分别为 MoS 中的 0.93（0.89-0.96）和 0.94（0.89-0.97），MoS 中的 0.85（0.77-0.91）和 0.67（0.48-0.82）和 BoS 中的 0.88（0.81-0.93）和 0.80（0.66-0.90），每个参数在所有三个测量之间都显示出等效性（p<0.01）。我们得出结论，使用向前倾斜释放测试评估广泛年龄范围内成年人的稳定性恢复性能参数是可靠的，与使用的倾斜角度协议无关。
