About plank exercise results of 5,170
23:59
23:52
27:07
26:16
18:20
16:00
28:53
25:19
17:25
20:29
20:10
27:55
17:41
19:02
17:44
21:46
28:23
17:47
19:29
21:47
23:24
24:03
53:55
55:05
102:57
26:29
50:06
44:23
68:00
89:15
259:07
86:27
112:33
119:27
60:11
63:27
27:53
35:24
25:45
23:16
21:12
29:29
24:23
34:15
28:42
19:18