INTERVALL20
40s on / 20s off
Reverse Crunches
Air Squats
Wghtless Russian Twists w/ Leg Lift
Supermans w/ 2s hold @top
Dead Bugs
INTERVALL20
40s on / 20s off
Reverse Crunches
Air Squats
Wghtless Russian Twists w/ Leg Lift
Supermans w/ 2s hold @top
Dead Bugs