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

0
0
03:18
33:37
15:08
29:12
08:24
03:15
04:56
05:19
14:39
06:33
17:34
05:10
12:33
05:29
12:25
13:28
06:56
06:57
10:12
10:10
11:56
03:15
29:29
06:54
11:29
24:18
16:20
03:30
09:27
08:00
10:00
15:06
08:17
05:05
13:26
07:05
03:18
08:02
07:22
06:44