Balance Analysis System Through Biaxial Rotation Force Platform

Not Applicable

Completed

• Conditions: Balancing Interference
• Interventions: Device: Force platform

• Registration Number: NCT04174690
• Lead Sponsor: University of Mogi das Cruzes

Brief Summary

This study developed a system for studying an individual's postural balance in an upright position on a force platform with controlled movement of 2-axis rotation (transverse and anteroposterior), by analyzing lower limb muscle activation and data from Pressure Center of displacement.

Detailed Description

The use of rotating force platforms has proven to be an important resource in the study of postural balance and motor control. Platforms composed of two force plates allow the analysis of the load relationship between the feet and the study of the coordination of the lower body segments in postural control. Center of pressure displacement data during perturbations generated by platform rotation allow the study of dynamic postural balance. However, devices that meet these characteristics are not common and have limitations on amplitude or speed of rotation. Thus, a force platform composed of two plates was developed, capable of collecting data for the calculation of the parameters of the center of pressure, differentiating each foot, with a computerized system to control amplitude and speed of rotation in the mid-lateral and anteroposterior axes. A new version of embedded and supervisory systems that control the device, collect and process the created data has also been developed. For platform functionality tests, volunteers were divided into three groups of 15 individuals: Group 1 (G1): women aged 18 to 40 years; Group 2 (G2): women aged 40 to 60 years; Group 3 (G3): women over 60 years old.

Study Timeline

• Study Start: 2019-10-14
• Status Verified: 2019-11
• Primary Completion: 2019-11-11
• Study First Submitted: 2019-11-20
• Study First Submitted QC: 2019-11-21
• Study First Posted: 2019-11-22
• Study Completion: 2019-12-20
• Last Update Submitted: 2020-05-18
• Last Update Posted: 2020-05-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 45

Inclusion Criteria

• Women
• Ages 18 to 80 years
• Asymptomatic
• Resident of the city of mogi das cruzes.
• You will have to sign the consent form

Exclusion Criteria

• History of dizziness or dizziness crisis not explained in the last year;
• Any musculoskeletal or neurological disorders;
• Significant pain that limits daily functions;
• Known uncorrected vestibular problems.
• Fall History

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Balance	Force platform	Volunteers aged from 18 years to over 60 years were selected without compromise. The tests were performed in a single session lasting 1 hour where the volunteers will do the tests on the force platform.

Primary Outcome Measures

Name	Time	Method
Center of pressure offset	1 hour	With the volunteer allocated on the platform in an upright position with the malleoli aligned with the central axis of rotation of the platform will be collected the displacement of the center of pressure. Unit of measure: millimeters (mm).

Secondary Outcome Measures

Name	Time	Method
Electromyographic signal	1 hour	Electromyographic signal of the anterior tibial and gastrocnemius muscle. unit of measurement in microvolts (µV).

Trial Locations

Locations (1)

Alessandro Pereira da Silva; 🇧🇷 Mogi das Cruzes, São Paulo, Brazil