Table 6.

The top 20 most frequently used keywords.

Number	Count	Centrality	Year	Keywords
1	215	0.02	1996	Rotator cuff
2	171	0.03	1996	Sub-acromial impingement syndrome
3	162	0.11	1995	Rotator cuff tear
4	158	0.1	1995	Rotator cuff repair
5	158	0.03	1998	Physical therapy
6	149	0.02	1996	Shoulder pain
7	121	0.03	1993	Shoulder
8	95	0.06	1997	Rehabilitation
9	71	0.13	1992	Strength
10	71	0.01	2001	Management
11	58	0.09	1998	Reliability
12	44	0.02	1993	Tendon
13	44	0	2009	Randomized controlled trial
14	43	0.07	2003	Integrity
15	38	0.02	1998	Motion
16	35	0.12	1995	Follow up
17	30	0.04	2004	Disorder
18	28	0.11	1997	Double blind
19	27	0.16	2000	Electromyographic analysis
20	26	0.04	1997	Therapy