Jennifer Garner

Garner's workouts get "pretty advanced" and incorporate dance, plyometric exercises, and strength training, according to her trainer.

A. Stand behind a Pilates box with knees bent and torso in line with the angle of shins. Jump feet toward each other, landing on box. Keeping obliques engaged and torso facing forward, jump onto the box, landing with left foot in front of right foot as if riding a surfboard. Knees should bend in line with second and third toes. A. Start in a squat position facing an 18-inch plyo box. Jump, landing with left foot on the box while lifting right knee. Jump feet toward each other, landing on box. "I love being creative so I think people would see some of the stuff we do and be like, 'What? Oh my gosh, I can't believe that that is possible.' It's pretty advanced stuff," says Nicely. To give you an idea, one of Nicely's favorite things to do with Garner is a challenge that the trainer simply refers to as "The Circuit." It involves eight box jumps, 40 jumps with a jump rope, 16 leaps over a mini-trampoline while holding a 10-pound medicine ball — and all of that five times through. A Broadway performer, marathoner, NASM-certified trainer, and certified pre/postnatal and corrective exercise specialist, Nicely incorporates multiple styles of exercise in her sessions with Garner. "On a typical day we'll do a solid warm-up and then we'll get the blood flowing and the heart rate up a bit with some cardio dances," says Nicely. "We might do two to four dances and then I'll usually take her through a plyometric box series." And then I'll get her back to the boxes and we'll do a plyometric series with one of those bigger plyometric boxes." In case you missed it, Jennifer Garner made an appearance on her trainer Beth Nicely's Instagram in a video showcasing the pair's fancy footwork — and it's fairly mesmerizing. We both love to dance, we both love to work hard, I think it's a good combination."