Walker told the mayor he’s been trying to stay consistent by doing body weight exercises, like sit ups and push ups, but he’s also maintaining a healthy diet. Nirenberg says he’s held on to a “bare bones” squat rack that he’s using to boost his mental health three to four times a week. “Things are pretty heavy right now, but we’ll get through all of this,” Nirenberg added. “But I need a little quiet time in addition to gym time.”