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Arnold Schwarzenegger's Son Joseph Baena Shows Off Chest Gains on Instagram

Arnold Schwarzenegger's Son Joseph Baena Shows Off Chest Gains on Instagram

Arnold Schwarzenegger's son Joseph Baena is shaping up to be following in his famous dad's footsteps in the gym department: the 21-year-old actor and athlete just shared another photo of his fitness progress to Instagram, showing off his chest day "GAINZ".

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Arnold Schwarzenegger's Son Joseph Baena Shows Off Chest Gains on Instagram

Always happy to see the GAINZ!!! What's your favorite muscle group to train? #chestday #goldsgym #gainz #pumped

Baena often works out with his dad, who in addition to being an action movie legend, famously won the Mr. Olympia bodybuilding title seven times, so he knows his way around a barbell. Baena calls Schwarzenegger the "best training partner in the world", and paid tribute to him earlier this year when he perfectly recreated one of Schwarzenegger's most iconic poses.

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Arnold Schwarzenegger's Son Joseph Baena Shows Off Chest Gains on Instagram

Just a lil thicc

Baena has now recently taken to documenting his workouts on Instagram so that his followers can see exactly what he's learned from having the Terminator as his gym buddy.

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Arnold Schwarzenegger's Son Joseph Baena Shows Off Chest Gains on Instagram

BIG happy birthday to the best training partner in the world! Love you dad

It looks like dad taught him well.

A powerful pair of pecs doesn't just add undeniable bulk to your upper body, it also makes your waist look visibly slimmer by comparison. And working out your chest can have benefits to other body areas too: for instance, bench presses attack your shoulders as well as your chest.