from the movie Drumline. There are also competitions at the national level, such as the Bands of America (BOA) Grand National Championships through Music for All . Although its legitimacy is often called into question, competitive marching band is sometimes considered a sport, due in large part to the physical exertion required in combination with teamwork. Many HBCU marching band fans refer to marching band as marching sport. Sports Illustrated considered the activity a sport in 1987, describing the Drum Corps International World Championships “one of the biggest sporting events of the summer.” In the same article, Sports Illustrated quoted basketball coach Bobby Knight, "If a basketball team trained as hard as these kids do, it would be unbelievable. I like to take my players [to watch drum corps] to show them what they can accomplish with hard work and teamwork. Besides, once they see them practice 12 hours a day, my players think I’m a helluva lot easier.” In his presentation to the American College of Sports Medicine's annual meeting in 2009, researcher and exercise physiologist Gary Granata presented research after studying members of the Avon High School Marching Black and Gold, noting "At the top levels of marching band and drum corps, you get a level of competition and athleticism that is equal to a Division I athletic program." Granata further pointed out, "Performers are constantly moving, and often running, at velocities that reach 180 steps or more per minute while playing instruments that weigh up to 40 pounds." Moreover, in an ESPN segment from 2005, researchers from Indiana State University placed devices on Drum Corps members that recorded metabolic rates during performances and practices, utilizing measurements of oxygen consumption, carbon dioxide production, and heart rate. The findings were that the performer's metabolic rates matched those of marathon runners halfway through a marathon, while the heart rate was more along the lines of someone who was running a "400 or 800-meter dash." Spring competitions Spring and early summer parade marching (or street marching) are popular in the northern midwest and Upstate New York, where temperatures are moderate enough for students to march distances in standard uniforms. Performance styles range from traditional block marching to elaborate productions with evolving drill patterns. Summer competitions Some circuits in the United States continue to hold field show competitions during the summer months. Much like drum corps, these bands rehearse and tour full-time