Cardiopulmonary Response to Robot-Assisted Tilt Table With Regard to Its Components

Myeong Sun Kim; Ha Yeon Kim; Gyulee Park; Tae-Lim Kim; Joon-Ho Shin

doi:10.12786/bn.2023.16.e9

Cardiopulmonary Response to Robot-Assisted Tilt Table With Regard to Its Components

Brain Neurorehabil. 2023 Mar 31;16(1):e9. doi: 10.12786/bn.2023.16.e9. eCollection 2023 Mar.

Authors

Myeong Sun Kim¹, Ha Yeon Kim², Gyulee Park¹, Tae-Lim Kim³, Joon-Ho Shin³

Affiliations

¹ Department of Rehabilitative and Assistice Techonology, Rehabilitation Research Institute, National Rehabilitation Center, Ministry of Health and Welfare, Seoul, Korea.
² Department of Healthcare and Public Health Research, Rehabilitation Research Institute, National Rehabilitation Center, Ministry of Health and Welfare, Seoul, Korea.
³ Department of Rehabilitation Medicine, National Rehabilitation Center, Ministry of Health and Welfare, Seoul, Korea.

Abstract

Cardiopulmonary function is exceptionally critical during the early stages of rehabilitation after neurological disorders such as stroke, spinal cord injury and Parkinson's disease. This study aimed to demonstrate how robot-assisted and tilt table exercises affect cardiopulmonary function. In this study, ten healthy young adults performed six combinations of conditions according to robot-assisted mode (on/off), angle of tilt table (20°/60°), and functional electrical stimulation (FES) mode (on/off). Four conditions had FES mode off with combinations of robot-assisted mode (on/off) and tilt angle (20°/60°) and two conditions had robot-assisted mode and FES on with tilt angle (20°/60°). Cardiopulmonary effects (oxygen uptake [VO₂], peak oxygen uptake [VO₂peak], metabolic energy cost [MET], rate pressure product [RPP], heart rate [HR], maximum heart rate [%HRmax], and minute ventilation [VE]) were compared in each condition. As a result, in the angle and FES mode effect, VO₂, VO₂peak, MET, RPP, HR, and %HRmax, unlike that for VE, showed major effects in angle. In addition, in the robot-assisted mode and angle effect, when the FES was switched off, VO₂, METs, and VE values showed major effects in the robot-assisted mode, whereas all other values showed major effects in angle. Compared to earlier reported findings, we can expect that robot-assisted tilt table training can lead to changes in the cardiopulmonary function.

Keywords: Oxygen Consumption; Rehabilitation; Robotics; Stroke.