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J.A. Tortella González1, M.A. Cano Cappellacci2, F. Quinteros Briceño3
1Autonomous University of Chile, Health Science, Santiago, Chile, 2University of Chile, Kinesiology, Santiago, Chile, 3Universidad de Chile, Anatomy and Legal Medicine, Santiago, Chile
Background: Aging involve a decrease in motor capacity, it influence in movement performance in older adults (OA), increasing the risk of falls, dependency and disability. Falls have seriously consequences in health status and over all in dependence and mortality in OA. In last years the principal strategies to diminishing this consequences focused in assessment multidimensional falls risk. one of this effort have relation with motor variability (MV), it had been studied as a way to quantify the motor adjustments made by the subject during a motor task, associating with risk of falls. The present study assessed MV based on a contact platform, mechanism not reported in previous researches, identifying the contact times during execution of 2-minute walk in place test (2MST) and relating this parameter with previous falls and physical and cognitive function tests of a group of 175 older adults.
Purpose: The principal aims of the study was determine the relationship between MV and previous falls events in OA, establish the behavior of MV with and without a cognitive stimuli.
Our hypothesis was that MV assessed during 2MST was related to the previous falls, and that there was a difference between the MV with and without cognitive stimuli.
Our hypothesis was that MV assessed during 2MST was related to the previous falls, and that there was a difference between the MV with and without cognitive stimuli.
Methods: This study was approved by an ethical committee in Santiago (Chile).141 OA fulfilled the eligibility criteria. An open and public call was made during 20 weeks in different zones of Santiago. The assessment process was made in 3 places with the same infrastructure condition. The measurements were taken according a protocol by the authors. Only the authors had access to the data saving the confidentiality of the information.
The statistical analysis was performing used SPSS program, distribution test was performed using Kolgomorov-Smirnov, the correlation analysis was performed with Rho Spearman test and to verify the differences in MV in basal versus cognitive demands condition Wilcoxon test was used.
The statistical analysis was performing used SPSS program, distribution test was performed using Kolgomorov-Smirnov, the correlation analysis was performed with Rho Spearman test and to verify the differences in MV in basal versus cognitive demands condition Wilcoxon test was used.
Results: The sociodemographic, health levels, physical and cognitive function variables showed a low risk of functional illness in the studied sample.The study demonstrated no statistical correlation between falls history and MV value. A decrease in the value of MV was recorded in the presence of a standardized cognitive stimulus, compared with baseline conditions in the study population. No statistical correlation between VM and tests of balance used regularly in clinical practice.
Conclusions:
- There is no correlation between the MV recorded in the execution of the 2MST and the record of falls reported in population.
- The values of motor variability during the 2MST have been established in the elderly population in baseline conditions and in presence cognitive stimuli.
- No correlation was founded between traditionally used risk falls test, and MV detected in baseline conditions and in presence of cognitive stimuli.
Implications: This study incorporates other objectivity way to assess MV, which would allow the detection risk factors in motor performance illness and risk of falls in OA, that type of assessment can be used in different scenarios, especially in primary health care.
This is relevant as it will positively influence the design of therapeutic interventions in OA.
This is relevant as it will positively influence the design of therapeutic interventions in OA.
Funding acknowledgements: The study was developed with financial support from the authors
Keywords:
Aging
Motor Variability
Accidental falls
Aging
Motor Variability
Accidental falls
Topics:
Older people
Health promotion & wellbeing/healthy ageing/physical activity
Disability & rehabilitation
Older people
Health promotion & wellbeing/healthy ageing/physical activity
Disability & rehabilitation
Did this work require ethics approval? Yes
Institution: Servicio de salud metropolitano oriente, Santiago de Chile.
Committee: Comité de Ética Científico Adultos Servicio de Salud Metropolitano Oriente
Ethics number: CR020519
All authors, affiliations and abstracts have been published as submitted.
