10 New Year's Resolutions That Are Way More Specific (and Attainable) Than "Get in Shape"

There is no shortage of plank variations, and nearly all of them will work your core and arms, plus provide a quick burst of cardio, making it a great specific exercise to tackle as part of getting in shape. Find a baseline by starting in a standard high plank (on hand and toes) and using a stopwatch to see how long you can hold it. Commit to spending some time in plank every day, trying to add a couple seconds every day until you can hold it for one minute. Want to take it up a notch? Try a plank challenge.