Table 1.

Search strategy (according to Medline terminology)

1	cognitive* impair* ti,ab.
2	cognition disorders/[MESH]
3	dementia/[MESH]
4	1 or 2 or 3
5	physical activity ti,ab.
6	physical active* ti,ab.
7	physical exerc* ti,ab.
8	exercise* ti,ab.
9	5 or 6 or 7 or 8
10	community* ti,ab.
11	home ti,ab.
12	10 or 11
13	fall* ti,ab.
14	accidental fall/[MESH]
15	fall* prevent* ti,ab.
16	13 or 14 or 15
17	4 and 9 and 12 and 16