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Effects of moveable platform training in preventing slip-induced falls in older adults.

Authors
Parijat-P; Lockhart-TE
Source
Ann Biomed Eng 2012 May; 40(5):1111-1121
NIOSHTIC No.
20041377
Abstract
Identifying effective interventions is vital in preventing slip-induced fall accidents in older adults. The purpose of the current study was to evaluate the efficacy of moveable platform training in improving recovery reactions and reducing fall frequency in older adults. Twenty-four older adults were recruited and randomly assigned to two groups (training and control). Both groups underwent three sessions including baseline slip, training, and transfer of training on a slippery surface. Both groups experienced two slips on a slippery surface, one during the baseline and the other (after 2 weeks) during the transfer of training session. In the training session, the training group underwent twelve simulated slips using a moveable platform while the control group performed normal walking trials. Kinematic, kinetic, and EMG data were collected during all the sessions. Results indicated 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 proactive and reactive control strategies learned during training to the second slip trial. The proactive adjustments include increased center-of-mass velocity and transitional acceleration after training. Reactive adjustments include reduction in muscle onset and time to peak activations of knee flexors and ankle plantar flexors, reduced ankle and knee coactivation, reduced slip displacement, and reduced time to peak knee flexion, trunk flexion, and hip flexion velocities. In general, the results indicated a beneficial effect of perturbation training in reducing slip severity and recovery kinematics in healthy older adults.
Keywords
Humans; Men; Women; Age-groups; Biomechanics; Training; Kinetics; Accidents; Injuries; Posture; Walking-surfaces; Physiology; Physiological-function; Physiological-effects; Physiological-factors; Author Keywords: Fall; Elderly; Biomechanics; Locomotion; Fall prevention training
Contact
Thurmon E. Lockhart, Locomotion Research Laboratory, Grado Department of Industrial and System Engineering, 0118, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
CODEN
ABMECF
Publication Date
20120501
Document Type
Journal Article
Email Address
lockhart@vt.edu
Funding Type
Grant
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-009222
Issue of Publication
5
ISSN
0090-6964
Source Name
Annals of Biomedical Engineering
State
VA
Performing Organization
Virginia Polytechnic Institute and State University
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