Neck Protection
Traditional Crunch
45%
Ab Roller Crunch
65%
AbXcore Crunch
85%
AbXcore Seated Crunch
100%
Core Activation
Traditional Crunch
30%
Ab Roller Crunch
50%
AbXcore Crunch
100%
AbXcore Seated Crunch
95%
Side Abs Activation
Traditional Crunch
20%
Ab Roller Crunch
30%
AbXcore Crunch
100%
AbXcore Seated Crunch
95%


