Step by step instructions, muscle activation and variants for the Frog Crunch Hold.
An isometric core exercise where you hold the crunch position with the legs in a frog stance — soles of the feet together and knees out to the sides. The combination of leg position and sustained contraction places intense, continuous tension on the abdominals.
Common mistakes content is coming soon.
The Frog Crunch Hold 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.