download the appSign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read previewBodybuilder Nick Walker said a simple technique has helped him pack on muscle without maxing out on heavy weights. This story is available exclusively to Business Insider subscribers. Walker is no stranger to moving big weights but said lifting heavy is less of a priority now. Instead, he's been incorporating slow negatives, a technique for maximizing muscle growth with slightly less weight.

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Persons: —, Nick Walker, Walker, he's, Dave Rienzi, Dwayne, Johnson Organizations: Service, New York Pro, Business