Aging Clinical and Experimental Research

, Volume 26, Issue 5, pp 519–527

Immediate effects after stochastic resonance whole-body vibration on physical performance on frail elderly for skilling-up training: a blind cross-over randomised pilot study

  • Slavko Rogan
  • Dietmar Schmidtbleicher
  • Lorenz Radlinger
Original Article

DOI: 10.1007/s40520-014-0212-4

Cite this article as:
Rogan, S., Schmidtbleicher, D. & Radlinger, L. Aging Clin Exp Res (2014) 26: 519. doi:10.1007/s40520-014-0212-4



This pilot study examined the feasibility outcome recruitment, safety and compliance of the investigation for stochastic resonance whole-body vibration (SR-WBV) training. Another aim was to evaluate the effect size of one SR-WBV intervention session on Short Physical Performance Battery (SPPB), Expanded Timed Get Up-and-Go (ETGUG), isometric maximal voluntary contraction (IMVC) and rate of force development (IRFD) and chair rising (CR).


Randomised double-blinded controlled cross-over pilot study.


Feasibility outcomes included recruitment, safety and compliance. For secondary outcomes, SPPB, ETGUG, IMVC, IRFD and CR were measured before and 2-min after intervention. Nonparametric Rank-Order Tests of Puri and Sen L Statistics to Ranked Data were proposed. Wilcoxon signed-ranked tests were used to analyse the differences after SR-WBV intervention and sham intervention. Treatment effects between the interventions were compared by a Mann–Whitney U test.


Among 24 eligible frail elderly, 12 agreed to participate and 3 drop out. The adherence was 15 of 24 intervention sessions. For secondary outcome, effect sizes (ES) for SR-WBV intervention on SPPB, ETGUG and CR were determined.


This pilot study indicate that the training protocol used in this form for frail elderly individuals is feasible but with modification due to the fact that not all defined feasibility outcomes target was met. SR-WBV with 6 Hz, noise level 4 shows benefit improvements on SPPB (ES 0.52), ETGUG (part sit-to-stand movement: ES 0.81; total time: ES 0.85) and CR (ES 0.66). Further research is desired to determine whether a new adapted training protocol is necessary for SR-WBV in the “skilling up” phase in frail elderly individuals.


Feasibility Adherence Attrition Isometric maximal voluntary contraction Isometric rate of force development 

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Slavko Rogan
    • 1
  • Dietmar Schmidtbleicher
    • 2
  • Lorenz Radlinger
    • 1
  1. 1.Bern University of Applied Sciences, Discipline PhysiotherapyBernSwitzerland
  2. 2.Institute of Sport SciencesGoethe-UniversityFrankfurtGermany

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