Knees Up CrunchesBy Originally posted: December 5, 2014 Last updated: July 17, 2019 Leave a CommentKnees Up CrunchesRelatedPop your hands behind your head to support your neck. Keep the knees over the hips and the knees at 90 degrees.RelatedRelatedExercise Categories:core, crunchSee this exercise in action:Search and filter through hundreds of group fitness drills and workouts on BootCraft.Related
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