Table 1.

The specific search strategy of the Pubmed database.

No.	Search items
1	“Insomnia” [Title/abstract]
2	“Sleep disorders” [Title/abstract]
3	“Sleep disturbances” [Title/abstract]
4	“Sleep initiation” [Title/abstract]
5	“Sleep maintenance insomnia” [Title/abstract]
6	“Sleep initiation and maintenance disorders” [Title/abstract]
7	1 or 2 or 3 or 4 or 5 or 6
8	“Tai Ji” [Title/abstract]
9	“Tai-ji” [Title/abstract]
10	“Tai Chi” [Title/abstract]
11	“Taijiquan” [Title/abstract]
12	“Tai Chi Chuan” [Title/abstract]
13	“T'ai Chi” [Title/abstract]
14	“Quan, Tai Ji” [Title/abstract]
15	8 or 9 or 10 or 11 or 12 or 13 or 14
16	7 and 15