2.1 Subjects
The two test subjects, neither of whom had previous experience with ikebana, included a woman aged 91 years (test subject 1) and a woman aged 86 years (test subject 2). Test subject one suffers from poriomania (the unconscious tendency to wander), and desired to go home. She would request that she be sent home up to 5 or 6 times a day. She has a short-term memory disorder and to stabilize her mood she is currently under psychiatric care. The second test subject has Alzheimer’s disease and basically her mood is stable but she also has poriomania. Fantasizing and odd behavior occur sporadically (Table 1).
Table 1. Biological data of subjects
2.2 Experimental Protocol
We utilized ikebana as a part of recreation for two residents. Recreation at the facility includes many activities such as cards, karaoke, painting, ball-toss game, watching DVDs, calligraphy, Japanese karuta card game, tanka poetry, exercise, target-hitting game, collage of pieces of colored paper, bowling, and ikebana. 13 to 15 residents, including the 2 test subjects, participated in the recreation. The place for the experiment was a cafeteria, 5 m by 10 m in size. Two adjacent walls were completely white, and the other two were covered with large windows. A table and chairs were placed in the center of the room, and the experiment took place there from 2 pm to 3 pm. Ikebana was performed as part of recreational activity from January 2014 through December 2014, once a month. After the teacher explained the materials, the test subjects followed the teacher’s example and arranged the flowers accordingly. The teacher and nursing care employee supported the effort. Each of the subjects engaged in ikebana gave positive feedback about the flowers e.g. “They’re so pretty, it makes me happy,” “I look forward to doing it once a month,” and “It makes me happy having flowers I can decorate my room with. The exercise came to a close after the teacher made some adjustments to the subjects’ arrangements. Nursing staff place the arrangements in the rooms of the subjects that were able to do the exercise and also tidies up afterwards. Furthermore, karaoke and watching DVDs, normal recreation that is conducted frequently, was used for comparison.
2.3 Materials
The material used for ikebana in January was yukiyanagi (Thunberg spirea), tulip, sweet pea, dracaena, and peacock aster. In February it was peach blossom, wild daffodil, sweet pea, ageratum, and Osmond. In this way we chose 4 to 5 different types materials per month from the most beautiful materials of the current season.
2.4 Neuropsychiatric Inventory
We evaluated the recreational activities including ikebana (ikebana, karaoke, watching a DVD) based on the condition of the test subjects before, during, and after the activity in a GBS scale with 6 mental states, and a NPI scale. In the GBS, scale we evaluated six conditions (emotional lethargy, emotional instability, loss of motivation, insecurity, depression, and anxiety) on a scale of six, ranging from zero (normal) to five (very bad). These 6 mental states refer to the condition of the residents and are necessary for nursing staff in caring for the residents. They also reduce the workload of nursing staff that can evaluate them effectively (Tables 2 and 3).