Since 2003, “King James” Lebron, age 41, has continued to rule the NBA without serious injuries since 2003, redefining elite longevity in the process. Lebron plays for the Los Angeles Lakers. “He’s been so successful over the years in large part because he goes the extra yard in the recovery process,” said Christopher Minson, a professor of physiology at the College of Arts and Sciences who trains endurance athletes.