Warming up your muscles is one of the most important aspects of any workout. A successful warm-up routine prepares you both physically and mentally for what is about to come.Why Warm Up?In one study, 44 men ran on a treadmill for 10-15 seconds without a warm up. 70% of those men showed abnormal EEG (heart monitor) changes caused by low blood supply to the heart.The next week, the people with abnormal readings performed a 2-minute warm up before performing the same test mentioned above. After the second test, nearly everyone improved.Warming up protects your heart by letting it gradually ramp up to higher gear.Without warm-ups, the shock and strain you place on your cardio system can cause minor damage if done repeatedly over the long term. In other words, don’t skip your warm-ups!