For example, you could perform 10 minutes of alternating stepups at a slow tempo while wearing a weight vest. “And then when I take the weight vest off and continue, I’m going to go faster than normal because of how fired up my neuromuscular system is,” Gaddour says. You can apply this to other conditioning exercises like lunges or crawls or even running, he says. You’ll get the strength and conditioning work and a performance boost on your subsequent unloaded move as a result.