If your back hurts during crunches and sit-ups, you’ve landed in the right place. I’ve run six marathons, I spend my days sitting down behind a desk, and I suffer from sciatica — protecting my lower back is essential whenever I work my abs.
Like most runners, I also have extremely tight hip flexors and often find they’ll take over during ab exercises, reducing the effectiveness of the move. Luckily, I’ve found the perfect crunch hack to ensure I’m getting the most out of this simple bodyweight move. Read on to find out more.
