Hold a weight (e.g., a medicine ball, plate) on your chest. • Lift your upper body towards your knees. Sit-ups help improve posture by strengthening the core muscles. A strong core supports the ...

Perform each move for 50 seconds, taking just 10 seconds of rest between each one. Complete all the moves, and then you're ...

You don’t crunches, sit-ups and planks to increase your core strength and definition, just take this 12-move standing kettlebell workout instead.

Hold for about one second — you should feel this engaging your abdominal muscles — and then lower back to the ground. Just like with sit-ups, you can add crunches to a strength training ...

Build bulletproof core muscles using these three exercises without weights, say the calisthenics instructors known as the Calisthenics Family. In their eyes, these are the three best calisthenics core ...

Standing abs workouts are a great way to strengthen your core without using common exercises like sit-ups ... with the weight, but also because simply holding the kettlebell up above your head ...