- Sit-ups are one of the basic and most common exercises for the human body.
In conjunction with a balanced diet sit-ups will help build a strong and well-balanced mid-section which is instrumental in practically all sports and physical performance, as well as in maintaining good posture and preventing injury.

- Improve your core strength, fitness and general health; develop a great core and mid-section

- Six week training program

- Good plan + plenty of discipline + about 30 minutes a week

- Strenghts the abdominal muscles and hip flexors
Lying with the back on the floor, typically with the knees bent in an attempt to reduce stress on the back muscles and spine, and then elevating both the upper and lower spine from the floor until everything superior to the buttocks is not touching the ground;
crunches or curl ups.

-“Good-form” sit-ups instructions:

a)lying face up on the floor with knees bent and feet flat.
Feel free to tuck your feet under a fixed object if you feel the need.
b) the movement begins by curling the shoulders towards the pelvis, with hands gently placed behind or below the ears. Try to keep your eyes on the ceiling even when you curl forward.
c) Avoid placing the hands behind the head itself as using them to exert force on the neck can cause injury.
Good practice is for the hands to lightly support the weight of the head, so that the neck flexor muscles can relax during the movement. Do not jerk the head forward with your hands.
d) slowly contract your abdominals and come up to an angle of no more than 35 degrees.
e) It’s important to focus on working the abdominal muscles and not the hips and also to keep your chin off your chest.
The lower back should not leave the floor which will make the curl up an effective isolation exercise for the abdominals.
f) Once you’ve reached the 35 degree position, hold for 1-2 seconds before gently lowering yourself to the floor.
Inhale on the way down and repeat.
Focus on natural, rhythmic breathing as you continue to perform the exercise.

- Initial test: http://www.twohundredsitups.com/test.html