The Gauntlet Plank Workout includes 11 planks that strengthen the core muscles. With many variations, this workout builds runner-specific stability.
That’s actually a simple question: the answer is no way! There are far better ab exercises than a simple sit-up, which can exacerbate back problems and only focuses on one small area of the abdominals.
And while you’ll develop tremendous ab strength by doing heavy squats, dead lifts, and other traditional weightlifting exercises, not all of us can throw around heavy iron at the gym.
Source: Level Up Your Plank Workout: 11 New Planks That Build Core Strength
My Comments: Will work this into my regiment.