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Try a core workout that includes three different ab exercises, like crunches, bicycle crunches and lower leg lifts. You would do 10 crunches, 10 bicycle crunches, and then 10 lower lifts .
But, some trainers actually prefer other abs exercises over sit-ups and crunches (more on that soon!). Benefits Of Sit-Ups. Work *multiple* muscle groups.
Extend your right arm over to your left leg for a small twist. Use your abs to return to the starting position and repeat on the other side. Step 3: Complete 10 reps on each leg (20 total).
Research has shown that both sit-ups and crunches are mediocre strength-building exercises and have injured many people. [3] In a crunch, unlike a sit-up, the lower back stays on the floor. This is said to eliminate any involvement by the hip flexors, and make the crunch an effective isolation exercise for the abdominals. [5]
It targets strength building and muscular endurance. An exercise "circuit" is one completion of all set exercises in the program. When one circuit is completed, one begins the first exercise again for the next circuit. Traditionally, the time between exercises in circuit training is short and often with rapid movement to the next exercise. [1]
You could do up to 40 at a time if you are doing quicker cardio-based bicycle crunches, but be sure to engage your core and follow proper form. The common mistakes people make when doing bicycle ...
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