Most people think getting visible abs means mindlessly crunching or performing a concoction of different exercises that promise to hit your core. But after more than 20 years of training, I've learnt that mastering certain movements well is often more effective than doing a dozen badly.
Mastering one exercise gives you the chance to perfect your technique, progressively overload the movement and really target the muscles you're trying to strengthen. In this case, that's your deepest abdominal muscles, which are the stabilizing muscles that support your spine, improve posture and create the strong foundation every well-developed core is built on.
