Step by step instructions, muscle activation and variants for the Frog Crunch.
The frog crunch is a bodyweight core exercise performed lying on your back with the soles of your feet pressed together and knees flared out to the sides. This position shifts the focus to the rectus abdominis while reducing hip flexor involvement, making it an effective isolation crunch variation.
Common mistakes content is coming soon.
The Frog Crunch is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.