Funding for this research was provided by:
the Translational Research Center for Rehabilitation Robots, Korea National Rehabilitation Center, Ministry of Health & Welfare, Korea (NRCTR-IN17002, NRCTR-IN18001)
Received: 23 April 2020
Accepted: 20 September 2020
First Online: 19 October 2020
Ethics approval and consent to participate
: The study was approved by the institutional review boards of National Rehabilitation Center in South Korea (NRC-2017-01-007) and conducted in accordance with the Declaration of Helsinki. All participants provided written informed consent before enrolment. Our study was registered retrospectively with ClinicalTrials.gov (NCT03465267).
: Consent for publication is acquired by all the authors.
: The authors report no conflicts of interest.