Here are a few of our favorites: Easier Reduce the range of motion by lifting your hips just 2 to 3 inches off the floor.
you’ll then raise your legs away from the floor, reach around them and clap your hands together as you crunch with your stomach. Here are the benefits of crunch claps for building powerhouse ...
To make things more challenging, place a kettlebell or dumbbell behind your head on the floor. Grab it and press it over and in front of your head as you crunch up and then back over as you come ...