Zac Efron Shows Off Huge Biceps in Rare Workout Photo

Zac Efron recently gave fans a glimpse of his bulging arms in a new gym photo shared by Brigham Buhler on Instagram, who posed alongside the actor for the snapshot.

Buhler captioned the photo, "@coachjimmyhouse just ran us through a killer Pilates workout."

Efron flashed a peace sign toward the camera, with a smiling Buhler pointing at him.

One of the most striking details in the photo is the enormous monochromatic blue mural of Arnold Schwarzenegger behind the pair, giving Efron's photo a distinctly bodybuilding-oriented backdrop.

The bodybuilding legend is depicted with his arms stretched outward, surrounded by heavy weightlifting equipment.

Schwarzenegger won seven Mr. Olympia titles before becoming one of Hollywood's biggest action stars.

Pilates is just one part of Efron's approach to staying fit. The actor previously talked about changing up his workouts instead of relying on the same routine every day.

"My gym work is a mix of strength training, balance training, agility training, power training all rolled into one," Efron told TRAIN while discussing his preparation for Baywatch.

The veteran performer also said he trained five or six days a week, incorporating cycling, sprints and swimming into his routine.

His approach expanded to include more attention to recovery. In a 2022 Men's Health interview, Efron said he had become a "foam-rolling fanatic" and regularly used stretching, self-massage and yoga.

"I enjoy pushing myself and really laying it all out," said the 38-year-old star.

Efron's muscular build has drawn plenty of attention throughout his career, particularly when he transformed for Baywatch and later packed on muscle to portray wrestler Kevin Von Erich in The Iron Claw.

For The Iron Claw, Efron underwent months of demanding training to prepare for the role. The transformation became one of the most talked-about aspects of his performance.

He later reflected on the physical demands of Baywatch, telling Men's Health that the experience taught him to approach extreme physical preparation differently.

"I learned a lot over the course of Baywatch — I learned the hard way about not sacrificing my real health for a look on camera," said the handsome star.

Efron became a household name as Troy Bolton in Disney's High School Musical franchise before taking on increasingly varied roles.

The California native later starred in 17 Again, Neighbors, The Greatest Showman, Extremely Wicked, Shockingly Evil and Vile and The Iron Claw.

He also moved into television with Down to Earth with Zac Efron, the travel and wellness series that earned him a Daytime Emmy.