How to build a stronger core in just 15 minutes, according to an expert trainer

Mixed race black man dreadlocks doing side plank dumbbell and kettlebell in bedroom.

If you're not already incorporating core strengthening exercises into your workout routine, it's well worth dedicating some time to them.

While sit-ups and crunches can target the abdominals, the core actually consists of a broader range of muscles, including the obliques, pelvis and lower back.