Lie flat on the floor with lower back pressed to the ground.
Put your hands besides the head.
Bring knees up to about 45- degree angle and slowly go through a bicycle pedal motion.
Touching the left elbow to the right knee, then the right elbow to the left knee while breathing evenly.
Repeat the movement for minimum of 25 reps each leg progressing further.
Muscles Targeted: Lower Rectus Abdominis(Abs), External Oblique, Internal Olique
1. Keep your head and neck in line with the spine. Don’t let your chin touch your chest. This takes the focus off the abs and can strain your neck.
2. Most people forget the negative or lowering part of the crunch. Fight gravity on the way down to really get a burn.
To make this tougher, you can move the legs horizontally over each other. See in this video