LAS VEGAS, Nev. — Las Vegas native Michael McCastle now holds the world record for most lunges in one hour and farthest distance lunged.

“It’s just about timing the pace, taking recovery when I needed to, taking longer breaks if I needed to, but just continuing on,” McCastle said. “Even if it’s five lunges at a time.”

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The Navy veteran completed 4,769 lunges, more than four miles worth over a 20-hour time span.

"I would say out loud one more lunge, one more, one more.”

McCastle developed that “one more” mentality over the last decade of accomplishing what some might consider impossible.

“I ended up breaking the world record for the most pull

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