Build Six Pack Fast with Only One Dumbbell

Build Six Pack Fast with Only One Dumbbell

0:00​ START
0:11​ Dumbbell Straight Arm Crunch
0:44​ Dumbbell side bridge
1:17​ Dumbbell Seated Tuck Crunch on Floor
1:50​ Dumbbell Crunch
2:23​ Dumbbell Russian Twist with Legs Floor Off
2:57​ Dumbbell Overhead Sit-up with Legs on Bench
3:27​ END