In summary, the 6-12-25 combination “is the ideal combo for maximum muscle fibre recruitment and metabolic stress, which are key drivers for muscle growth and improved conditioning,” says Sergii.

The workout, created by YouTube trainer Caroline Girvan, focuses on 12 whole minutes of dead bug variations. You’ll need a set of dumbbells to get the most out of this workout — don’t be too ambitious ...

Reverse planks are planks, just reversed. They target and strengthen your abs, arms, shoulders, back, glutes and legs. Our fitness writer did 12 minutes per day for a week.

You can build your six-pack muscles using your body weight and these five abs exercises. One personal trainer explains how to do them and the benefits. ... 3-4 sets of 8-12 reps. 3.

For instance, strong obliques enable our spine to rotate and bend to the side, while the rectus abdominis (our six-pack muscles) assist with flexion, allowing us to bend forward with ease.