Age-related joint moment characteristics during normal gait and successful reactive-recovery from unexpected slip perturbations.
Age-related joint moment characteristics during normal gait and successful reactive-recovery from unexpected slip perturbations.
复制标题
DOI：
10.1016/j.gaitpost.2009.04.005
复制
发表时间：
2009-10
期刊：
影响因子：
2.4
通讯作者：
Lockhart, Thurmon E.
中科院分区：
文献类型：
--
作者：
Liu, Jian;Lockhart, Thurmon E.
本研究的目的是调查在从意外滑动中成功反应性恢复期间，老化对3D下肢关节力矩的影响。通过让参与者在光滑的地板表面上行走来诱导意外的滑倒。成功的反应性恢复试验，从9名年轻人和9名老年人参与者进行了识别和分析。实施三维逆动力学来计算踝关节、膝关节和髋关节的反应性关节力矩。用关节力矩峰值大小和关节力矩峰值产生的速度来描述非预期滑移时的平衡恢复策略。结果表明，显着更高的峰值关节力矩恢复比正常行走的年轻人和老年人。同时，在反应性恢复，老年人被发现利用额和矢状关节力矩，而年轻人主要依靠矢状关节力矩。结论：踝关节和膝关节是控制矢状面运动障碍的关键，而髋关节主要负责稳定额状面上半身的平衡。这项研究证实了意外滑倒时关节力矩产生的与年龄相关的差异。此外，建议在未来的滑动和福尔斯研究中实施3D分析。
The objective of the current study was to investigate the effects of aging on 3D lower extremity joint moments during successful reactive-recovery from unexpected slips. Unexpected slips were induced by having participants walk over a slippery floor surface. Successful reactive-recovery trials from nine young and nine elderly participants were identified and analyzed. Three-dimensional inverse dynamics were implemented to calculate reactive joint moments at the ankle, knee, and hip joints. Peak joint moment magnitude and the speed of peak joint moment generation were used to describe the balance recovery strategies from unexpected slips. Results indicated significantly higher peak joint moments in recovery than in normal walking for both the young and elderly. Meanwhile, during reactive-recovery, the elderly were found to utilize both frontal and sagittal joint moments while the younger adults relied primarily on sagittal joint moment. It was concluded that the ankle and knee joints were critical in controlling sagittal plane motion disturbance, while the hip joint was mainly responsible for stabilizing upper body balance in the frontal plane. This study confirmed age-related differences in joint moment generation during unexpected slips. Additionally, implementing 3D analysis is recommended in future slips and falls research.
登录
查看更多内容
影响因子：
2.5
作者：
Robinovitch, SN;Heller, B;Cortez, J
通讯作者：
Cortez, J
影响因子：
2.4
作者：
Wojcik, LA;Thelen, DG;Alexander, NB
通讯作者：
Alexander, NB
影响因子：
3.7
作者：
Stevens, J. A.;Corso, P. S.;Miller, T. R.
通讯作者：
Miller, T. R.
影响因子：
1.8
作者：
Owings, TM;Pavol, MJ;Grabiner, MD
通讯作者：
Grabiner, MD
影响因子：
2.1
作者：
Weerdesteyn, V;Nienhuis, B;Duysens, J
通讯作者：
Duysens, J