Identification of the Core Activate Position for a Seated Subject: Proposal of a new Exercise Method for Maintenance Rehabilitation.

Objectives: This study aimed to identify a position for core muscle activation (core activate position) for a seated subject and to design an exercise method using this position for rehabilitation during the daily maintenance or maintenance stages.

Methods: Thirteen young men participated as subjects in this study. We manufactured a chair in which the seat had an adjustable forward tilt angle.