Crunches: 20 Reps per Day

Core strengthening is vital, and crunches are at the top of the list of abs exercises. Keep your feet on the ground, or lift your knees in the air. Hold your hands behind your head, or fold them across your chest. Focus on form, and knock off 20 a day!

Activity
Target
20 Reps
Duration
1 Day
Success Rate
91%
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