Damien Rooney has officially broken the Guinness World Record for performing the most chin-ups in a single hour while wearing a twenty-pound weight.

The former mixed martial artist confirmed the achievement last week after receiving formal validation from Guinness regarding his performance.

Rooney adjusted his preparation strategy after an initial attempt failed to meet the required standards.

He subsequently focused on a shorter, weighted target of one hour to refine his technique.

Verification of such records requires extensive review processes that can extend up to twenty weeks.

During this period, officials examine video footage from multiple angles to ensure accuracy.

The record specifically covers the maximum number of chin-ups completed within the designated timeframe under the specified load.

Rooney's success marks a significant milestone in his fitness career following years of competition.