Effects of perturbation-based slip training using a virtual reality environment on slip-induced falls.
Effects of perturbation-based slip training using a virtual reality environment on slip-induced falls.
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DOI：
10.1007/s10439-014-1128-z
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发表时间：
2015-04
影响因子：
3.8
通讯作者：
Liu J
中科院分区：
文献类型：
--
作者：
Parijat P;Lockhart TE;Liu J
本研究旨在设计和评估虚拟现实训练在改善老年人恢复反应和减少跌倒频率方面的有效性。24名老年人被招募并随机分配到两组（虚拟现实训练组和对照组）。两组均接受三个阶段的训练，包括基线滑行、训练和滑地转移训练。两组都经历了两次滑倒，一次在基线期间，另一次在训练试验的转移期间。训练组在跑步机上行走时通过倾斜虚拟现实场景引起的视觉扰动进行12次模拟滑倒，对照组在训练期间进行正常行走。在所有课程期间收集了运动学和动力学数据。结果表明，与对照组相比，训练组在训练转移试验期间的福尔斯发生率降低。训练组能够将训练期间学到的反应控制策略转移到第二次滑动试验中。反应性调整包括减少滑动距离。此外，步态参数反映步态不稳定性（步幅长度，步宽，步幅速度的变化）减少后，在VR环境中行走15-20分钟。结果表明，有益的影响，减少滑倒的严重程度和恢复运动学的健康老年人的虚拟现实训练。
The purpose of the current study was to design and evaluate the effectiveness of virtual reality training in improving recovery reactions and reducing fall frequency in older adults. Twenty-four older adults were recruited and randomly assigned to two groups (virtual reality training and control). Both groups underwent three sessions including baseline slip, training and transfer of training on slippery surface. Both groups experienced two slips, one during baseline and the other during the transfer of training trial. The training group underwent twelve simulated slips using a visual perturbation induced by tilting a virtual reality scene while walking on the treadmill and the control group performed normal walking during the training session. Kinematic and kinetic data were collected during all the sessions. Results demonstrated a reduced incidence of falls in the training group during the transfer of training trial as compared to the control group. The training group was able to transfer reactive control strategies learned during training to the second slip trial. The reactive adjustments included reduced slip distance. Additionally, gait parameters reflective of gait instability (stride length, step width, variability in stride velocity) reduced after walking in the VR environment for 15–20 min. The results indicated a beneficial effect of the virtual reality training in reducing slip severity and recovery kinematics in healthy older adults.
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影响因子：
2.4
作者：
Liu, Jian;Lockhart, Thurmon E.
通讯作者：
Lockhart, Thurmon E.
影响因子：
1.8
作者：
Keshner, EA;Kenyon, RV
通讯作者：
Kenyon, RV
影响因子：
2.4
作者：
Haibach, Pamela S.;Slobounov, Semyon M.;Newell, Karl M.
通讯作者：
Newell, Karl M.
DOI：
10.1097/00005373-200101000-00021
发表时间：
2001-01-01
影响因子：
--
作者：
Sterling, DA;O'Connor, JA;Bonadies, J
通讯作者：
Bonadies, J
影响因子：
5.1
作者：
Bugnariu, Nicoleta;Fung, Joyce
通讯作者：
Fung, Joyce