About plank exercise results of 5,171
56:29
51:39
39:57
53:06
71:01
40:11
59:01
85:35
52:20
61:21
126:10
19:05
22:38
19:01
20:52
26:47
14:26
18:03
17:09
16:20
21:58
17:34
21:18
14:01
15:18
21:13
19:34
29:23
18:22
24:03
17:06
14:58
25:39
40:13
19:14
15:11
19:03
21:33
20:48
19:59
16:07
18:04
24:57
19:10
19:28
16:17