Exercise Library
Leg Extension Crunch (with Stability Ball)
Gripping a stability ball between your feet, you crunch up while extending your legs, combining a standard crunch with a leg-extension challenge that keeps the hip flexors engaged throughout.
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Primary muscle
Primary: Rectus abdominis Secondary: Hip flexors
Equipment
Bodyweight
Category
Abs
Track This Exercise in the App
Log your leg extension crunch (with stability ball) sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.