About plank exercise results of 5,236
14:24
25:09
15:55
13:18
12:34
17:52
17:14
18:11
22:46
23:26
18:03
15:04
17:49
20:22
60:19
31:05
40:22
39:55
33:16
55:14
32:38
35:19
51:09
34:26
43:17
71:51
38:06
39:15
31:12
31:57
71:11
63:29
66:31
81:35
62:24
48:21
75:53
53:24
92:36
21:22
12:26
17:03
18:16
38:49
16:00
17:37