Sit-ups target the abdominal muscles, specifically the rectus abdominis ... How many sit-ups should I do a day? The number of sit-ups you should do per day depends on your general fitness level ...

Beyond the 30 degrees other muscles come into play and start doing the work. Often people find when they do a sit-up is that the initial lift hurts, but then the exercise becomes far easier ...

Make these 5 moves a part of your workout regime and you'll build a stronger core over time without the need for weights.

Pilates is a great alternative to standard ab workouts if you want to build core strength without crunches and sit-ups.

While sit-ups have long ... strain from the neck muscles and focuses more on the abdominals," Dr. Larson adds. Todd Sinett, DC, believes you can do much more than sit-ups to help your core.

It’s a common misconception that to target our core muscles the best ... you are really engaging your obliques in a way that sit-ups and planks cannot do,” says Steve. Don’t be surprised ...

Sit with your legs extended and loop a resistance band around your foot, holding it for tension. Flex your foot towards you ...

Add inches to your biceps and triceps with this 25-minute dumbbell workout ...

If you cannot lie down on your back, you’re short on space, or you simply prefer standing workouts, this 15-minute ab workout blasts your core without a single sit-up.