Somewhat of a forgotten exercise situps still have a place in your exercise
program under certain circumstances. The reason why crunches are often
recommended over situps is because they do a better job of isolating the
abdominals without putting stress on the lower back and overly involving the hip
flexors. Overworking the hip flexors, making them overly tight can present a
potentially
dangerous muscle imbalance for the sedentary population. If this is not
a concern and you need to be able to get up from the ground fast situps can be
used in at any point in your workout program. Because the hip flexors work so
much during situps it is helpful to perform an exercise which helps lengthen
them directly afterwards such some dynamic flexibility
lower body stretches.