Have you seen Jennifer Garner's arms lately? They look incredible. Sure, Jennifer has always been in great shape, but lately, we can't stop staring at those arms that look like they could bench press one of her super-cute kids.

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Apparently, Jennifer has Simone De La Rue, trainer and founder of Body by Simone, to thank for her brand-new biceps. De La Rue has worked with Jennifer for years, but she took her training to a whole new level while preparing her for a role in the upcoming action film Peppermint.

"We knew that we needed to look like an action figure," she told WomensHealthMag.com, "So obviously we needed to target the arms." According to De La Rue, Jennifer worked out six days a week, for one to two hours a day, to prep for the role. "We worked on lifting heavier weights, usually around 15 pounds and we also did a lot of bodyweight work, and supplemented with my custom resistance bands," De La Rue says.

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She added that the bands are particularly great for travel, because you can just throw them in your bag — which was really helpful when Jennifer was on the road. In fact, one of De La Rue's favorite moves for Jennifer is an overhead press using the bands:

They also didn't skimp on the triceps workouts (and that certainly shows!). De La Rue says they did plenty of triceps extensions with weights and the resistance band, along with triceps dips. Jennifer also took advantage of De La Rue's Body By Simone App, which allowed her to access custom workouts, personal training, and live streaming.

Be right back, heading to the gym to fire up that app and torch our triceps.

From: Women's Health US
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Kristine Thomason
Freelance Journalist

Kristine Thomason is a writer and editor with nearly a decade of experience creating content for print and digital publications. Previously, she was the health and fitness director at mindbodygreen, and the fitness and wellness editor at Women’s Health. Kristine's work has appeared in Men's Health, Travel + Leisure, Health, and Refinery29, among others. She holds a journalism degree from New York University, and is certified in personal training by the National Academy of Sports Medicine (NASM).