A strong core will support everything else you do, but when most people think of core they only think of abs. Head trainer Alexa Towersey and Jenna Douros show us how to build up your core.

The core includes all of the abs (deep and superficial) in addition to the muscles of the hips and lower back. These four exercises are designed to target as much of the core as possible. When combined with the flexion, extension and rotation exercises in the DB Complex and HIIT workout, you have a very comprehensive workout plan. Where possible, think of squeezing the inner thighs together and drawing the pelvic floor in and up (think holding your pee mid-flow) – this is the most surefire way to activate the midline and the ‘lazier’ lower and deep transverse abdominals. We don’t just want a washboard stomach on the outside, we want a corset on the inside. You can do the exercises in any order but I like to start with the lower abs (reverse crunches) and finish with a neutral spine (reinforcing correct posture for the day).

Reps: 20 of each

Progression:

Week 1: 1 set | Week 2: 2 sets

Week 3: 3 sets | Week 4: 4 sets

Reverse Crunch x 20

Lying on your back, lift your legs in the air with your knees slightly bent. Place your hands on the floor beside you. Without momentum, use your lower abs to slowly curl the hips off the floor as if you want to touch your toes to the ceiling. Slowly lower them back to the starting position. This is one rep.