TY  - JOUR
A1  - Rogan, Slavko
A1  - Radlinger, Lorenz
A1  - Hilfiker, Roger
A1  - Schmidtbleicher, Dietmar
A1  - Bie, Robertus M. A. de
A1  - Bruin, Eling de
T1  - Feasibility and effects of applying stochastic resonance whole-body vibration on untrained elderly : a randomized crossover pilot study
T2  - BMC geriatrics
N2  - Background: Aging is associated with loss of balance and activity in daily life. It impacts postural control and increases the risk of falls. The current study was conducted to determine the feasibility and long-term impact of stochastic resonance whole-body vibration (SR-WBV) on static and dynamic balance and reaction time among elderly individuals.
Methods: A randomized crossover pilot study with blinding of the participants. Twenty elderly were divided into group A (SR-WBV 5 Hz, Noise 4/SR-WBV 1 Hz, Noise 1) or group B (SR-WBV 1 Hz, Noise 1/SR-WBV 5 Hz, Noise 1). Feasibility outcomes included recruitment, compliance and safety. Secondary outcomes were Semi-Tandem Stand (STS), Functional Reach Test (FRT), Expanded Timed Get Up-and-Go (ETGUG), walking under single (ST) & dual task (DT) conditions, hand and foot reaction time (RTH/RTF). Puri and Sen Rank-Order L Statistics were used to analyse carry-over effects. To analyse SR-WBV effects Wilcoxon signed-ranked tests were used.
Results: With good recruitment rate (55%) and compliance (attrition 15%; adherence 85%) rates the intervention was deemed feasible. Three participants dropped out, two due to knee pain and one for personal reasons. ETGUG 0 to 2 m (p = 0.143; ES: 0.36) and ETGUG total time (p = 0.097; ES: 0.40) showed medium effect sizes.
Conclusions: Stochastic resonance training is feasible in untrained elderly resulting in good recruitment and compliance. Low volume SR-WBV exercises over 12 training sessions with 5 Hz, Noise 4 seems a sufficient stimulus to improve ETGUG total time. The stimulation did not elicit changes in other outcomes.
Trial registration: This trial has been registered at the U.S. National Institutes of Health under ClinicalTrials.gov: NCT01045746 .
KW  - Feasibility
KW  - Adherence
KW  - Attrition
KW  - Balance
KW  - Reaction time
Y1  - 2015
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/37378
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-373782
SN  - 1471-2318
N1  - Copyright © Rogan et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
VL  - 15
IS  - 25
PB  - BioMed Central
CY  - London
ER  -