Healthy older people, prevention of falls, physiotherapy
Conditions
Interventions
Control Group: no treatment. Evaluations in the beginning and after 10 weeks. Training Group Home: Evaluation in the beginning and after 20 training sessions. The intervention consist of two classroom
other
H02.010.625
Sponsors
Universidade de São Paulo - Faculdade de Medicina de Ribeirão Preto
Hospital de Clínicas da Faculdade de Medicina de Ribeirão Preto
Eligibility
Age
60 Years to 80 Years
Inclusion criteria
Inclusion criteria: Healthy older, between 60 and 80 years, living in the community
Exclusion criteria
Exclusion criteria: Presence of cardiovascular, neurological or vestibular diseases, presence of musculoskeletal problems that interferes with static or dynamic balance, peripheral neuropathies, use of medication for central nervous system, mini-mental State Examination (MMSE) score less than 23
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of upright balance using force platform: Data will be collected from a force platform (EMG System do Brasil) at an acquisition frequency of 100Hz. Displacement (range) and average velocity of CoP trajectory will be recorded in medial-lateral (ML) and anterior-posterior (AP) directions and then will be analyzed by using the Matlab software (Math Works, Inc.). Upright balance will be evaluated during 8 situations: standing on a fixed platform with eyes open and closed, standing on unstable platform with eyes open and closed, in the tandem position with eyes open and closed and one leg with eyes open and closed. Each attempt lasted 60 seconds, except in the tandem and one leg positions which will be maintained for 30 seconds. The test situations will be randomized. Participants will perform the task three times under each condition;Analysis of Three-Dimensional Kinematics: The three-dimensional kinematic analysis will be performed using eight cameras Qualisys model Oqus 300 positioned approximately 2.5 m from the ground with the aid of fixed tripod. The cameras will be connected to a computer and captured images are processed through software Qualisys Track Manager. The records will be conducted at 100 Hz (100 frames per second) and the time of purchase will be equal to one gait cycle. The camera calibration procedures are performed in accordance with the manufacturer of the cameras Qualisys Oqus 300. The muscle pattern activation will be evaluated during the gait: vastus lateralis, biceps femoris, tibialis anterior and lateral gastrocnemius through the amplitude and duration of electromyographic signal, the signal normalized by maximum voluntary contraction. Gait analysis will be performed during different conditions: usual walking, gait associated to simple and complex cognitive task , gait associated to simple and complex motor task. The sequence of gait analysis will be randomized. Participants will perform each task three times | — |
Secondary
| Measure | Time frame |
|---|---|
| Evaluation of upright balance using electromyography : The muscle activation pattern will be evaluated together with the analysis of COP trajetory using force platform, during the same 8 situations reported above. The electromyographic (EMG) activity of vastus lateralis (VL), tibialis anterior (TA), biceps femoris (BF), and gastrocnemius lateralis (GL) muscles normalizing to Maximal Voluntary Contraction (MVC) using an electromyography (EMG System do Brasil). Self-adhesive Ag/AgCl bipolar surface electrodes were used (inter-electrode distance of 2 cm). Electrodes will be connected to a 16-channel signal conditioner. The electromyographic signals of the muscles will be digitally using an A/D converter board with 16-bit dynamic resolution, and the sampling frequency will be set at 2KHz with input range of ±10V. The electromyographic signal will be filtered by using a Butterworth pass-band filter (20-500Hz). For viewing and processing the electromyographic signal the software that came with your system will be used. Three questionnaires will be administrated: Questionnaire to identify the level of physical activity of the participants (Modified Baecke Questionnaire); Brazilian SROS Multidimensional Functional Assessment Questionnaire – BOMFAQ that will be administrated at the beginning and after 20 sessions of the exercise program; Questionnaire to evaluate the quality of life (WHOQOL - bref), that will be administrated at the beginning and after 20 sessions of the exercise program. After 6 months of the end of the study, all participants will be contacted to repeat the evaluations and the questionnaires | — |
Countries
Brazil
Contacts
Public ContactDaniela Abreu
Universidade de São Paulo - Faculdade de Medicina de Ribeirão Preto
Outcome results
None listed