As a fitness editor, there's nothing I love more than digging into the workout routines of Hollywood's most famous faces. And when it comes to Jennifer Aniston, I'm somewhat obsessed. I've tried her go-to workout class and her 15-15-15 cardio workout, but I'm still not sure how the Friends star likes to work her abs.

Luckily, her personal trainer revealed all of that in an interview with Pop Sugar (opens in new tab), founder of Gloveworx (opens in new tab), an AFAA-certified boxing studio with gyms in New York and Los Angeles. Leyon Azubuike (open in new tab), who is the founder of Gloveworx (open in new tab), an AFAA-certified boxing studio with gyms in New York and Los Angeles, gave us the abdominal moves the star often uses for a strong, sculpted core. To learn more, I rolled out my yoga mat and tried the routine.

Before we get into the workout, let me add that a strong core is more than just visible abs. Furthermore, if a visible six-pack is your goal, you will not get it from abdominal training alone. Visible abs are based on body fat percentage. Here is how body fat percentage is calculated and why it is important.

It's also worth knowing that what works for Jen and the Hollywood stars I steal workouts from may not work for you or your body. If you are new to exercising or returning to exercise after an injury, I recommend checking your form with a personal trainer before increasing the weight or frequency.

Now let's get started. Get an exercise mat (click here for the best yoga mats), dumbbells, and a medicine ball. The best adjustable dumbbells for weightlifting at home can be found here.

The workout is divided into two different circuits. Circuit 1 consists of 3 rounds with no rest. You should only stop for 45-60 seconds between each round. When you are done, move on to Circuit 2.

Circuit 1:

Plank: 30 seconds to 2 minutes Bird dog: 10 reps per side Lunged rotating ball slam: 8 reps per side

Complete 3 rounds.

Circuit 2:

Side elbow plank: 15 seconds to 1 minute each side Renegade row: 10 reps each side Medicine ball rotational punch: 8 reps each side

End of 3 rounds.

Make no mistake: Jennifer Aniston is in great shape, so when I sat down on the workout mat to try her ab circuit, I didn't know what to expect. Here are the results.

Compared to many of the workouts I subject myself to in the name of good content, this one was wonderfully simple. I found the three repetitions of a simple circuit to be a great way to focus on my form, rather than rushing to the next exercise. However, simple does not equal easy. I worked hard from the start, and from the first minute of the plank I could feel my core being worked. In the first circuit, I set myself the challenge of holding the plank for at least 10 seconds each round, and by the time I moved on to Circuit 2, my core was on fire.

This discipline was a mix of slow, controlled movements and exercises requiring explosive power that kept my heart rate elevated throughout the workout. Both the rotating ball slam with lunge and the medicine ball rotational punch required twisting sideways and throwing the ball forcefully. Neither of these are "typical" abdominal exercises, but they definitely forced me to put more effort into my abdominal obliques than I would have done lying down on a mat and doing crunches.

This workout didn't take much time, but it got my heart rate up and my core strong. (That is, if my neighbors will let me hit the medicine ball.) I will definitely be adding this workout as a finisher to my strength training in the future. I'll probably save it for the gym in the future, but kudos to Jen.