Build bulletproof core muscles using these three exercises without weights, say the calisthenics instructors known as the ...

For some, replacing leg raises with different moves that hit the same muscle groups is more effective. Enter, dragon flags. This calisthenics exercise makes you look like you’re defying gravity ...

Generally speaking, exercises that draw your knees or legs toward your body engage the lower section of these abdominal muscles — think mountain climbers, leg raises, or reverse crunches ...

Leg raises are an ideal exercise for those of us who spend our days sitting, and they’re simple to do, too. Here’s how to add them to your strength training routine for maximum impact.

Reverse leg raises For this exercise ... Aim for 4 sets of 10-15 reps. Is 20 minutes of calisthenics enough? We’ve been conditioned to believe that a workout isn’t worth the chalkboard ...