Background Paragraph: Sometimes muscles and tendons get injured when a person starts doing an activity before they have warmed up properly. A warm up is a slow increase in the intensity of a physical activity that prepares muscles for an activity. Warming up increases the blood flow to the muscles and increases the heart rate. Warmed-up muscles and tendons are less likely to get injured. For example, before running or playing soccer, a person might jog slowly to warm muscles and increase their heart rate. Even elite athletes need to warm up ( Figure below ). 
Story: Two teams were competing in a 5 km race. White team warmed up before the race, but Blue team arrived with a bus late and didn't have time to warm up properly before the race.
Which team did a slow increase in the intensity of physical activities before the race? Which team didn't do a slow increase in the intensity of physical activities before the race? Which team experienced fewer muscle and tendon injuries? Which team experienced more muscle and tendon injuries? Which team had fewer athletes with an increased heart rate before the race? Which team had fewer athletes with increased blood flow to the muscles before the race? Which team had more athletes with an increased heart rate before the race? Which team had more athletes with increased blood flow to the muscles before the race? Which team's racers didn't have their muscles prepared for an activity? Which team's racers had their muscles prepared for an activity?