I tried a 10-minute Arnold Schwarzenegger-approved bodyweight workout. It's perfect if you're busy and can't be bothered to exercise.

How to become a bodybuilder while being cheap - Quora

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Arnold Schwarzenegger - Greatest Physiques

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Arnold Schwarzenegger - Greatest Physiques

Arnold Schwarzenegger - Greatest Physiques

Arnold Schwarzenegger Shares a 360-rep Bodyweight Finisher

Arnold Schwarzenegger's Free Home Bodyweight Workout