Sabrena Jo, PhD, senior director of science and education at the American Council on Exercise, has decades of experience helping people find ways to become physically active. From working one-on-one with clients to leading group fitness classes to teaching and developing curricula at universities, Dr. Jo has always had a passion for supporting people as they start and maintain a physically active lifestyle. A graduate from the University of Kansas, Dr. Jo’s research interests include understanding how the motivational climate influences optimal experiences for participants in various exercise settings.