Effects of perturbation-based slip training using a virtual reality environment on slip-induced falls

Details

• Personal Author:
  Liu J ; Lockhart TE ; Parijat P
• Description:
  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 12 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. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accidents Accidents, Occupational Aging Biomechanical Phenomena Men Musculoskeletal System Occupational Health Safety Staff Development Women

  More +
• Keywords:
  Age-groups Author Keywords: Fall Biomechanics Control-methods Elderly Fall-protection Fall Prevention Training Humans Injuries Injury-prevention Kinetics Motion-perception Motion-studies Physiological-effects Physiological-factors Physiological-function Physiology Posture Safety-education Simulation-methods Training Virtual Reality Walking-surfaces

  More +
• ISSN:
  0090-6964
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Arizona ; OSHA Region 3 ; OSHA Region 9 ; Virginia ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  43
• Issue:
  4
• NIOSHTIC Number:
  nn:20047180
• Citation:
  Ann Biomed Eng 2015 Apr; 43(4):958-967
• Contact Point Address:
  Jian Liu, Division of Applied Science and Technology, Marshall University, One John Marshall Drive, CB 212,Huntington, WV 25755, USA
• Email:
  liuji@marshall.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  Virginia Polytechnic Institute and State University
• Peer Reviewed:
  True
• Start Date:
  20090901
• Source Full Name:
  Annals of Biomedical Engineering
• End Date:
  20140831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c10117690791e54f846d13b7a42dbcd379ed7cfab16847668c9692cfc748561024a4fdf41ac9d93a45b32543f76b73e0ad5c1fcfc5b0cf9c68cc4fb320ff5b30
• Download URL:
  https://stacks.cdc.gov/view/cdc/202343/cdc_202343_DS1.pdf
• File Type:
  [PDF - 859.56 KB ]