Sitting on a yoga ball to stretch is great fro your core strength. squeeze your muscles tight

0
0
03:30
17:34
12:33
15:08
06:44
03:15
04:27
08:17
14:39
18:16
10:41
09:27
10:02
06:58
06:00
05:05
11:56
05:10
07:40
05:58
29:29
05:29
10:12
07:28
03:18
06:00
06:58
33:37
06:17
05:29
08:24
16:19
12:43
08:02
10:31
06:54
03:18
10:00
10:50
16:39