If you train your abdominal muscles relentlessly, don't forget to also train your lower-back muscles. If you ignore lower-back muscle training, abdominal training can actually create bad posture and back pain. A good rule of thumb is for each… (read more)
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If you train your abdominal muscles relentlessly, don't forget to also train your lower-back muscles. If you ignore lower-back muscle training, abdominal training can actually create bad posture and back pain. A good rule of thumb is for each abdominal set, follow it up with a lower-back set with an equal amount of repetitions.
You should avoid sit-ups and crunches in positions which anchor your feet. There is a vast array of variations on these basic ab exercises, and not all of them are created equal. When you anchor your feet to exercise your abs you are placing undue stress on your lower back. This reduces the effectiveness of the exercise and puts you at risk of injury.