In the past when he was with the Chicago Bulls, current New York Knicks center Joakim Noah took a more unconventional approach toward his off-season training.

How did he do it? He worked out with big-wave surfing legend Laird Hamilton.

Noah credits the workouts, which include working with dumbbells and long, underwater stretches, with increasing his lung capacity and endurance.

“Every time I do this workout, he makes me do something I didn’t think was possible,” Noah said in a sneak peek of his interview on NBA TV’s NBA Inside Stuff.

Even after building his stamina with intense off-season training, Noah struggled with his fitness  after missing nearly the entire preseason with a groin injury. The Bulls, at the time, projected to be a championship contender after Derrick Rose has returned, went just 1-3 to start the 2013-14 season.