About plank exercise results of 5,240
21:06
14:51
13:38
13:08
14:19
15:50
11:41
14:07
14:56
15:27
12:01
11:30
11:31
12:29
10:04
09:27
12:17
11:31
10:48
14:12
17:14
16:13
13:14
14:07
09:41
11:25
16:11
11:50
17:54
10:59
16:25
20:13
13:04
21:32
17:34
25:07
10:10
12:14
44:03
11:02
08:40
10:41
10:33
11:17
20:08
10:37