About plank exercise results of 5,237
15:23
15:54
15:14
24:47
16:41
15:17
15:56
15:35
13:30
17:50
22:17
22:31
13:27
14:13
11:32
15:38
12:25
22:11
14:04
22:44
18:12
22:04
14:38
13:51
15:54
20:01
20:44
20:31
13:12
12:15
14:49
18:10
10:38
15:37
18:19
16:43
16:33
19:04
30:31
17:03
13:33
20:39
12:42
14:55
14:46
17:20