Contribution to the determination of locomotive impairments and associated fall risk level in the a geing community.

.......................................................................................................5 Introduction ..................................................................................................6 Section 1 State of the art ...................................................................8 1.1 Gait Cycle Characteristics............................................................8 1.1.1 General Description............................................................8 1.1.2 The stance phase............................................................ ...10 1.1.3 The swing phase............................................................ 13 1.1.4 Spatial-temporal characteristics of the gait cycle... ... ................16 1.2 Elderly Gait..............................................................................18 1.2.1 Ageing process.................................................................18 1.2.1.1 Neurological changes with aging...............................18 1.2.1.2 Musculoskeletal changes with aging.................. ............21 1.2.2 Impact on gait kinematic............................................. ......23 1.2.2.1 Spatial-temporal characteristics.................................23 1.2.2.2 Range of motion.....................................................27 Section 2 Methods ...........................................................................33 2.1 Subjects..................................................................................33 2.2 Measurement...................................................... ...................34 2.2.1 Anthropometric measurement............................................34 2.2.2 Kinematic measurements.................................................34 2.2.2.1 The measurement system: VICON.................. .............34

[1]  KINEMATIC AND KINETIC PARAMETERS OF HEALTHY ELDERLY PEOPLE , 2005 .

[2]  Satoru Ebihara,et al.  Differential gait kinematics between fallers and non‐fallers in community‐dwelling elderly people , 2005 .

[3]  D. Winter,et al.  Biomechanical walking pattern changes in the fit and healthy elderly. , 1990, Physical therapy.

[4]  Leigh Blizzard,et al.  Ageing and gait variability--a population-based study of older people. , 2010, Age and ageing.

[5]  M. P. Murray,et al.  Walking patterns in healthy old men. , 1969, Journal of gerontology.

[6]  R. Burdett,et al.  A comparison of gait characteristics in young and old subjects. , 1994, Physical therapy.

[7]  T. Oberg,et al.  Basic gait parameters: reference data for normal subjects, 10-79 years of age. , 1993, Journal of rehabilitation research and development.

[8]  Dhurjati Majumdar,et al.  Temporal spatial parameters of gait with barefoot, bathroom slippers and military boots. , 2006, Indian journal of physiology and pharmacology.

[9]  A. Schultz,et al.  Mobility impairment in the elderly: challenges for biomechanics research. , 1992, Journal of biomechanics.

[10]  Philippe Thoumie,et al.  Ankle dorsiflexion delay can predict falls in the elderly. , 2002, Journal of rehabilitation medicine.

[11]  Y. Lajoie,et al.  Predicting falls within the elderly community: comparison of postural sway, reaction time, the Berg balance scale and the Activities-specific Balance Confidence (ABC) scale for comparing fallers and non-fallers. , 2004, Archives of gerontology and geriatrics.

[12]  D. Winter.  Kinematic and kinetic patterns in human gait: Variability and compensating effects , 1984 .

[13]  S. Õunpuu,et al.  Step length reductions in advanced age: the role of ankle and hip kinetics. , 1996, The journals of gerontology. Series A, Biological sciences and medical sciences.

[14]  J. Collins,et al.  Biomechanical gait alterations independent of speed in the healthy elderly: evidence for specific limiting impairments. , 1998, Archives of physical medicine and rehabilitation.

[15]  S. Lord,et al.  Balance disorders in the elderly , 2008, Neurophysiologie Clinique/Clinical Neurophysiology.

[16]  R. Craik,et al.  Relationships between physical activity and temporal-distance characteristics of walking in elderly women. , 1991, Physical therapy.

[17]  Richard A. Brand,et al.  The biomechanics and motor control of human gait: Normal, elderly, and pathological , 1992 .

[18]  E. Vellidou,et al.  The BIOTELEKINESY home care service: A holistic concept to prevent fall among the elderly based on ICT and computer vision , 2010, Proceedings of the 10th IEEE International Conference on Information Technology and Applications in Biomedicine.

[19]  T. Oberg,et al.  Joint angle parameters in gait: reference data for normal subjects, 10-79 years of age. , 1994, Journal of rehabilitation research and development.

[20]  R. Fitzpatrick,et al.  Age-related differences in walking stability. , 2003, Age and ageing.

[21]  R. Barrett,et al.  Swing phase mechanics of healthy young and elderly men. , 2001, Human movement science.

[22]  B. Auvinet,et al.  Gait Abnormalities in Elderly Fallers , 2003 .

[23]  K. Roach,et al.  Normal hip and knee active range of motion: the relationship to age. , 1991, Physical therapy.

[24]  D. Winter,et al.  Gait in the elderly , 1997 .

[25]  P. A. Hageman,et al.  Comparison of gait of young women and elderly women. , 1986, Physical therapy.

[26]  Jeffrey M. Hausdorff,et al.  Gait variability and fall risk in community-living older adults: a 1-year prospective study. , 2001, Archives of physical medicine and rehabilitation.

[27]  T. Hortobágyi,et al.  Age causes a redistribution of joint torques and powers during gait. , 2000, Journal of applied physiology.

[28]  Tasuku Kimura,et al.  Effects of aging on gait patterns in the healthy elderly , 2007 .

[29]  R. Guimarães,et al.  Characteristics of the gait in old people who fall. , 1980, International rehabilitation medicine.

[30]  K. Holt,et al.  Gait Characteristics of Elderly People With a History of Falls: A Dynamic Approach , 2006, Physical Therapy.

[31]  D. Winter.  Foot trajectory in human gait: a precise and multifactorial motor control task. , 1992, Physical therapy.

[32]  S. Õunpuu,et al.  Effects of age on the biomechanics and physiology of gait. , 1996, Clinics in geriatric medicine.

[33]  R. Kirkwood,et al.  Step length appears to be a strong discriminant gait parameter for elderly females highly concerned about falls: a cross-sectional observational study. , 2011, Physiotherapy.

[34]  P. A. Hageman,et al.  Comparison of gait of young men and elderly men. , 1986, Physical therapy.

[35]  P O Riley,et al.  Reduced hip extension during walking: healthy elderly and fallers versus young adults. , 2001, Archives of physical medicine and rehabilitation.

[36]  R. Brand,et al.  The biomechanics and motor control of human gait: Normal, elderly, and pathological , 1992 .