Ethical approval
This study was a pilot randomized controlled trial with two groups. The trial protocol was registered with UMIN-CTR (ID: UMIN000045883) on 27/10/2021. Ethical approval was obtained from St. Luke’s International University Ethics Review Committee (approval number: 20-A095). Informed written consent was obtained from all participants.The study reports followed the CONSORT extension to pilot and feasibility trials guidelines. The data were collected from April 2021 to January 2022.