A population-based study of sensorimotor factors affecting gait in older people
Open Access
- 13 October 2008
- journal article
- research article
- Published by Oxford University Press (OUP) in Age and Ageing
- Vol. 38 (3), 290-295
- https://doi.org/10.1093/ageing/afp017
Abstract
Background: the study of factors associated with age-related gait decline may assist in developing methods to preserve mobility in older people. Objective: to examine the associations between sensorimotor factors relevant to ageing and gait in the general older population. Design: cross-sectional population-based study. Methods: participants aged 60–86 years (n = 278) were randomly selected using electoral roll sampling. Sensorimotor factors (quadriceps strength, reaction time, postural sway, proprioception and visual contrast sensitivity) were measured using the Physiological Profile Assessment. Gait variables (speed, cadence, step length, double support phase and step width) were recorded with a GAITRite walkway. Linear regression was used to model relationships between sensorimotor and gait variables. Results: mean age of participants was 72.4 (7.0) years with 154 (55%) males. Better quadriceps strength, reaction time and postural sway (in men) predicted faster gait speed due to their effects on step length and/or cadence. Body weight (in men) and visual contrast sensitivity (in women) were modifying factors in these relationships. Better postural sway, reaction time (in men) and quadriceps strength (in women) predicted reduced double support phase. Modifying factors were quadriceps strength (in men) and proprioception (in women). Postural sway was the sole predictor of step width and in women only. Conclusion: potentially modifiable sensorimotor factors were associated with a range of gait measures, with a different pattern of individual associations and interactions seen between the sexes. These results provide further mechanistic insights towards explaining age-related gait decline in the general older population.This publication has 21 references indexed in Scilit:
- Walkway Length Determination for Steady State Walking in Young and Older AdultsResearch Quarterly for Exercise and Sport, 2008
- A structural equation model relating impaired sensorimotor function, fear of falling and gait patterns in older peopleGait & Posture, 2007
- Validity of the GAITRite® walkway system for the measurement of averaged and individual step parameters of gaitGait & Posture, 2005
- Epidemiology of Gait Disorders in Community‐Residing Older AdultsJournal of the American Geriatrics Society, 2005
- Physiological and Psychological Predictors of Walking Speed in Older Community-Dwelling PeopleGerontology, 2005
- Reliability of the GAITRite® walkway system for the quantification of temporo-spatial parameters of gait in young and older peopleGait & Posture, 2004
- The Contribution of Foot Problems to Mobility Impairment and Falls in Community‐Dwelling Older PeopleJournal of the American Geriatrics Society, 2001
- ASSOCIATIONS OF SENSORY-MOTOR FUNCTIONS WITH POOR MOBILITY IN 75- AND 80-YEAR-OLD PEOPLEJournal of Rehabilitation Medicine, 1998
- Sensori-motor Function, Gait Patterns and Falls in Community-dwelling WomenAge and Ageing, 1996
- Balance Performance and Step Width in Noninstitutionalized, Elderly, Female Fallers and NonfallersPTJ: Physical Therapy & Rehabilitation Journal, 1989