# Design and Performance Analysis of a Mecanum-Built Perturbation-Based Balance Training Device

## TL;DR

A new balance training device was designed to help prevent falls in elderly or neurologically impaired individuals by simulating multidirectional perturbations.

## Contribution

The device integrates mecanum wheels and modified constraint-induced movement therapy for adaptive balance training.

## Key findings

- The device showed load-dependent reductions in distance traveled during trials.
- Peak accelerations remained consistent across varying loads, indicating effective perturbation induction.
- Lateral movement preference was observed, suggesting potential optimization through pulse width modulation adjustments.

## Abstract

This study proposes a mecanum-built perturbation-based balance training device aimed at improving motor adaptive skills for fall prevention in individuals with neurological disorders or the elderly. Incorporating multidirectional fall simulations in line with modified constraint-induced movement therapy, the device's efficacy was evaluated by measuring the distance traveled and peak acceleration under different static loads (20, 30, and 40 kg) and input accelerations (1, 2, and 3 m/s2). A pilot study with 10 subjects was conducted to assess device performance, utilizing repeated measures analysis of variance and Bonferroni's post hoc analysis. Results indicated a load-dependent reduction in distance traveled, with an average mean difference of 0.74–1.23 cm between the 20 and 40 kg loads for trials of 9 and 18 cm, respectively. Despite varying loads, the device consistently achieved near-anticipated peak accelerations, suggesting its capability to induce effective perturbations. The study also observed a significant lateral movement preference, suggesting adjustments to pulse width modulation and time period may optimize lateral movement performance.