Now 22 years old, Bryce Harper is gearing up for his fourth MLB season. But from the looks of it, the Washington Nationals outfielder doesn’t plan on getting through it on youthful energy and enthusiasm alone.

Harper recently demonstrated what he called a “Human Plate Pull,” in which he pulls over 550 pounds of weight hand over hand. It appears like he’s also pulling the cameraman, perched on what is presumably a sled.