Perturbation Training for Fall-Risk Reduction in Healthy Older Adults

Interference and Generalization to Opposing Novel Perturbations Post Intervention

Datos Bibliográficos

ID5284884
AutoresTanvi Bhatt (0000-0001-6417-1018), Yiru Wang (0000-0002-4708-0613), Shuaijie Wang (0000-0001-8006-8299), Lakshmi Kannan (0000-0001-6352-4029)
Año2021
Volumen3
Páginas697169-697169
Fecha de publicación2021-08-16
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaFrontiers in Sports and Active Living (JOURNAL)
Identificadores de la revistaISSN: 2624-9367 • E-ISSN: 2624-9367
EditorialFrontiers Media SA (PUBLISHER • CH)
DOI10.3389/fspor.2021.697169
PMID34490424
OpenAlexW3194911544
IdiomaEN
Citas recibidas3
Referencias citadas64

This study examined the effects of perturbation training on the contextual interference and generalization of encountering a novel opposing perturbation. One hundred and sixty-nine community-dwelling healthy older adults (69.6 ± 6.4 years) were randomly assigned to one of the three groups: slip-perturbation training (St, n = 67) group received 24 slips, trip-perturbation training (Tt, n = 67) group received 24 trips, and control (Ctrl: n = 31) group received only non-perturbed walking trials (ClinicalTrials.gov NCT03199729; https://clinicaltrials.gov/ct2/show/NCT03199729). After training, all groups had 30 min of rest and three post-training non-perturbed walking trials, followed by a reslip and a novel trip trial for St, a retrip and a novel slip trial for Tt, and randomized novel slip and trip trials for Ctrl. The margin of stability (MOS), step length, and toe clearance of post-training walking trials were compared among three groups to examine interferences in proactive adjustment. Falls, MOS at the instant of recovery foot touchdown, and hip height of post-training perturbation trials were investigated to detect interferences and generalization in reactive responses. Results indicated that prior adaptation to slip perturbation training, resulting in walking with a greater MOS (more anterior) and a shorter step length (p 0.05). Current findings suggested that, although perturbation training results in proactive adjustments that could worsen the reactive response (interference) when exposed to an unexpected opposing perturbation, older adults demonstrated the ability to immediately generalize the training-induced adaptive reactive control to maintain MOS, to preserve limb support control, and to reduce fall risk

Physical medicine and rehabilitation · Physical therapy · Randomized controlled trial · Balance, Gait, and Falls Prevention · Cerebral Palsy and Movement Disorders · Medicine · Stroke Rehabilitation and Recovery · Internal Medicine