Nagayama's goal is to promote the recovery of patients with psychiatric disorders in seclusion rooms in psychiatric wards. In the research, he assessed how introducing a nursing intervention based on the Strength Model impacted the length of seclusion time for the patient and the perception and emotion of the nurse. "The Strength Model contributes to the construction of nursing practice that focuses on the individuality of patients by deepening nurses' understanding of the values and motivations behind patient behaviour and promoting the patients' willingness to express," Nagayama explains. "The assistance in finding a patient's strength leads to the discovery of the inherent strength of nurses, which create new identity for the nurses." The Strength Model that has been developed is based on the Rapp & Goscha Strength Model. "This model is a support method based on the recovery model in mental health medical welfare. The root of the recovery model is that people will take initiative in their own life, have hope and dreams, and promote their own wellness and enjoy their lives," says Nagayama. "In the Strength Model, the focus is on the strength of the environment surrounding every individual and support them by involving them in decision-making while overseeing the support process." The relationship between the patients with psychiatric disorders and the supporter is based on mutuality. They learn from each other. In addition, he explains that the supporter never ignores the problems of them but "tries to understand the pain, the suffering, and the barriers in achieving one's own wishes and dreams." The methodology for this research is based on 'action research', where the researcher cooperated with psychiatric nurses to conduct nursing care based on the Strength Model. The target facilities for studying were established, comprising six mental health wards in six psychiatric hospitals within prefecture A. The research subjects were then established, consisting of 10 patients who have been secluded for a long term the seclusion room and 61 nurses across six mental health wards. Then came the intervention period, which took place between August and December 2017, followed by the investigation stage.