Not only are sit-ups an effective exercise for strengthening the abdominal muscles, when done correctly, these can be an excellent for weight-loss too. There are many sit-up variations that can ...

Hold a kettlebell by the horns or a single heavy dumbbell vertically in front of chest. Stand with feet shoulder-width apart, ...

You may like Forget the gym — sculpt your arms, legs, and core with just a chair and dumbbells; No, not sit-ups — I tried this 10-minute standing dumbbell ab workout and it torched my core ...

Your knees are powerhouses. They’re the biggest, strongest, joints in your body, and most people use them throughout the day to sit, stand, walk, jump, and bend. They bear 80% of your body ...

If you feel like you don't have control, use a resistance band secured behind you to help offset some of your body weight. That will make the movement easier. Step-ups strengthen the knee and help ...