Sets: 3 Reps: 8
Target: lower back, core, hamstrings
Sets: 3 Reps: 8 Target: core, abs, chest
Crunch up with your abs, pause, then press out with your chest.
Sets: 3 Reps: 8 Target: lower back, core
Raise your torso until your body is in a straight line, pause, then slowly lower yourself all the way down.
Sets: 3 Reps: 8 Target: abs, core, hip flexors
Keep your legs straight and raise the ball as high as you can before returning it.
Sets: 3 Reps: 6 each side Target: abs, core, shoulders
Brace your core and turn your whole torso as you press the weight up overhead.