Table 1.

The search strategy of databases.

Databases	Search strategy
PubMed	((Tai chi[Title/Abstract]) OR (Tai ji [Title/Abstract]) OR (Tai-ji [Title/Abstract]) OR (Baduanjin [Title/Abstract]) OR (Wuqinxi [Title/Abstract]) OR (Liuzijue [Title/Abstract]) OR (Yijinjing [Title/Abstract]) OR (Qigong [Title/Abstract])) AND (Hypertension [Title/Abstract])
Web of science	((TS = (qigong)) OR TS = (Tai chi) OR TS = (Taiji) OR TS = (Tai-ji) OR TS = (Baduanjin) OR TS = (Wuqinxi) OR TS = (Liuzijue) OR TS = (Yijinjing)) AND TS = (Hypertension)
Cochrane	((“Tai Chi”): ti, ab, kw OR (“Taiji”): ti, ab, kw OR (“Tai-ji”): ti, ab, kw OR (“Buduanjin”): ti, ab, kw OR (“Wuqinxi”): ti, ab, kw OR (“Liuzijue”): ti, ab, kw OR (“qigong”): ti, ab, kw OR (“yijinjing”): ti, ab, kw) and (“Hypertension”): ti, ab, kw
CNKI	SU% (“Taijiquan” + “Baduanjin” + “Wuqinxi” + “Liuzijue” + “Yijinjing” + “Qigong”) and SU = “Gaoxueya”
CQVIP	M = (Qigong OR Yijinjing OR Wuqinxi OR Liuzijue OR Baduanjin OR Taiji) AND M = Gaoxueya
WANFANG DATA	Title or keyword: (Qigong or Taiji or Yijinjing or Wuqinxi or Liuzijue or Baduanjin) and title or keyword: (Gaoxueya)