If you want to do crunches as part of your workout routine, stick to a moderate number as you would with any other exercise — three sets of 10 to 12 reps is generally sufficient. Vary your crunches by doing bicycle crunches, reverse crunches and oblique crunches to hit multiple muscles.
What are 3 sets of crunches?
If you want to do crunches as part of your workout routine, stick to a moderate number as you would with any other exercise — three sets of 10 to 12 reps is generally sufficient. Vary your crunches by doing bicycle crunches, reverse crunches and oblique crunches to hit multiple muscles.