Effect of hip abduction assistance on metabolic cost and balance during human walking

The use of wearable robots to provide walking assistance has rapidly grown over the last decade, with significant advances made in robot design and control methods toward reducing physical effort while performing an activity. The reduction in the walking effort has mainly been achieved by assisting forward progression in the sagittal plane. Human gait, however, is a complex movement that combines motions in three planes, not only the sagittal but also the transverse and frontal planes. In the frontal plane, the hip joint plays a key role in gait, including balance. However, wearable robots targeting this motion have rarely been investigated. In this study, we developed a hip abduction assistance wearable robot by formulating the hypothesis that assistance that mimics the biological hip abduction moment or power could reduce the metabolic cost of walking and affect the dynamic balance. We found that hip abduction assistance with a biological moment second peak mimic profile reduced the m..., , , # Effect of hip abduction assistance on metabolic cost and balance during human walking

[https://doi.org/10.5061/dryad.8gtht76vq](https://doi.org/10.5061/dryad.8gtht76vq)

J. Park, et.al.
prepared by Juneil Park
last updated: August, 2022

Data are provided as a .mat file with the following name: Hip\_ABD.mat

This MATLAB file provides the time series of data from tethered system, balance-related parameters, spatio-temporal parameters and metabolic cost for each participant and condition.

To access the data, type the following into the MATLAB command line: load Hip\_ABD.mat
Loading this .mat file will give access to the following data:

1. .sub# , # 1, 2, ... 7. Substructure for data of Subject X
2. .NW / .MFMP / .PFMP / .MSMP / .PSMP : Substructure for data of each profile
2-1) .characteristic: .characteristic contained information about height, body mass and age of each participant.
3-1) ctl\_param
power: mechanical power delivered by exosuit (W/kg)
ref\_force\_R: re...