Effects of aging and perturbation intensities on temporal parameters during slipping-like perturbations

The aim of this study was to analyze the modifications of temporal parameters during slipping-like perturbations associated both with aging and perturbation intensities. Twelve participants equally distributed from two age groups (elderly and young) were recorded while, during steady locomotion, managing unexpected slipping-like perturbations, in forward direction, at different intensity and amplitude of foot shift. Two metrics were extrapolated from the analysis of the ground reaction force supplied by ad hoc platform aimed at destabilizing the balance control.

[1]  M. Woollacott,et al.  Control of reactive balance adjustments in perturbed human walking: roles of proximal and distal postural muscle activity , 1998, Experimental Brain Research.

[2]  Silvestro Micera,et al.  Angular Momentum During Unexpected Multidirectional Perturbations Delivered While Walking , 2013, IEEE Transactions on Biomedical Engineering.

[3]  Silvestro Micera,et al.  Design and Evaluation of a new mechatronic platform for assessment and prevention of fall risks , 2011, Journal of NeuroEngineering and Rehabilitation.

[4]  L. Rubenstein Falls in older people: epidemiology, risk factors and strategies for prevention. , 2006, Age and ageing.

[5]  A. Patla,et al.  Role of the unperturbed limb and arms in the reactive recovery response to an unexpected slip during locomotion. , 2003, Journal of neurophysiology.

[6]  Silvestro Micera,et al.  During walking elders increase efforts at proximal joints and keep low kinetics at the ankle. , 2009, Clinical biomechanics.

[7]  J. Burnfield,et al.  Prediction of slips: an evaluation of utilized coefficient of friction and available slip resistance , 2006, Ergonomics.

[8]  M. Bobbert,et al.  Contribution of the support limb in control of angular momentum after tripping. , 2004, Journal of biomechanics.

[9]  J. Duysens,et al.  Muscle reflexes and synergies triggered by an unexpected support surface height during walking. , 2007, Journal of neurophysiology.

[10]  A. Patla,et al.  Adapting locomotion to different surface compliances: neuromuscular responses and changes in movement dynamics. , 2005, Journal of neurophysiology.

[11]  C. Becker,et al.  Smartphone-based solutions for fall detection and prevention: the FARSEEING approach , 2012, Zeitschrift für Gerontologie und Geriatrie.

[12]  T. Lockhart,et al.  Effects of age-related gait changes on the biomechanics of slips and falls , 2003, Ergonomics.

[13]  W. Berg,et al.  Circumstances and consequences of falls in independent community-dwelling older adults. , 1997, Age and ageing.