Priplata Attila A, Niemi James B, Harry Jason D, Lipsitz Lewis A, Collins James J
Center for BioDynamics and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.
Lancet. 2003 Oct 4;362(9390):1123-4. doi: 10.1016/S0140-6736(03)14470-4.
Somatosensory function declines with age, and such changes have been associated with diminished motor performance. Input noise can enhance sensory and motor function. We asked young and elderly participants to stand quietly on vibrating gel-based insoles, and calculated sway parameters and random-walk variables. In our 27 participants, application of noise resulted in a reduction in seven of eight sway parameters in young participants and all of the sway variables in elderly participants. Elderly participants showed greater improvement than young people in two variables, mediolateral range (p=0.008), and critical mean square displacement (p=0.012). Noise-based devices, such as randomly vibrating insoles, could ameliorate age-related impairments in balance control.
体感功能会随着年龄增长而衰退，且这种变化与运动表现的下降有关。输入噪声可以增强感觉和运动功能。我们让年轻和年长的参与者安静地站在基于凝胶的振动鞋垫上，并计算了摇摆参数和随机游走变量。在我们的27名参与者中，施加噪声使年轻参与者的八个摇摆参数中的七个以及年长参与者的所有摇摆变量都有所减少。年长参与者在两个变量上的改善比年轻人更大，即左右方向范围（p = 0.008）和临界均方位移（p = 0.012）。基于噪声的设备，如随机振动的鞋垫，可以改善与年龄相关的平衡控制障碍。
