If it doesn't challenge you, it doesn't change you! #30dayabchallenge

Who's joining me in this next challenge? 

Let's plan to start June 1st. 

Want to know the difference between Situps & Crunches? Read the information below via livestrong.com

Situps and crunches are both common exercises performed to work the abdominal muscles. While these exercises are very similar, there are a few small differences that should be taken into account when deciding which exercise is best for your own personal fitness goals.

Situps
Situps are performed by lying on your back with your knees bent, feet flat on the floor and your hands behind your head. Hooking your feet beneath a solid object or having a workout partner secure them to the ground will make this exercise easier to complete. Contract your abdominal muscles and raise your torso off the ground by bending your hips and slightly rounding your back. Continue until your torso is upright and your back is completely off the ground, and then slowly lower back to the floor.

Crunches
Crunches are similar to the situp but with a much smaller range of motion. Lie on your back with your knees bent, feet flat on the floor and hands behind your head. You can also begin with your knees bent and thighs vertical if this is a more comfortable position for you. Contract your abdominal muscles to round your back and lift only your shoulders off the ground while leaving your lower back firmly pressed against the floor. In a controlled manner, lower back to the floor.

Muscles Worked
Both situps and crunches target the rectus abdominis muscle that runs from your sternum to your pelvis. This is the muscle focused on when striving for the "six-pack" look. Along with the rectus abdominis, situps also intensely work the hip flexors and to a lesser extent, the obliques. During the first part of the situp, the abdominal muscles are primarily used, and then after your lower back leaves the floor, the hip flexors are used to complete the movement.

Considerations
While situps are primarily considered a safe exercise, they may not be appropriate for everyone. The strong use of the hip flexors during situps can make them dangerous for individuals with weak abdominal muscles or a history of low back problems. If you find that situps create a pull or pain in your lower back, opt instead for crunches or half-situps in which your lower back never leaves the floor. These exercises will strengthen your abdominal muscles while protecting and maintaining spine health. Once your abs are stronger, you can begin to introduce complete situps into your workout routine.

Read more: http://www.livestrong.com/article/441343-situps-vs-crunches/#ixzz2Uo2J0xoR