On the exercise side of things, cardio used to be the training of choice – think about the 1970s running boom and the aerobics classes of the 1980s. For a few decades, it was common knowledge that fats killed us. That evidence enough for you? To compound my claim, I feel we (fitness professionals) need to take some of the blame too. So why, oh why, do we get training this vital muscular organ so damn wrong? A bold claim, right? Where do I get off? Well, for one thing, cardiovascular disease is the world’s biggest killer claiming 17.9 million lives each year. Additionally, waste products like carbon dioxide get carried away by blood to be expelled from the body.
Without the pumping action of your heart, blood would be unable to move through your circulatory system and other organs and tissues in your body wouldn’t function properly. Blood provides the cells and tissues of your body with vital oxygen and nutrients. It’s what I consider to be the most important muscle in the body. The interior of your heart also contains valves that help keep blood flowing in the correct direction.Ī healthy heart is absolutely essential for your body’s overall health and function. Because of this, the walls of the ventricles are thicker and contain more cardiac muscle. They pump blood to other parts of your body. The bottom two chambers are called ventricles. The atria receive blood from other parts of your body.
I feel it’s important to talk a little bit about the structure of the heart, as this is often neglected, forgotten about, and taken for granted. Coordinated contractions of cardiac muscle, which are controlled by special cells called pacemaker cells, allow for your heart to pump blood as a single functional unit. Hearts are largely made up of a special type of muscle tissue called cardiac muscle. In the case of your heart, this function is pumping blood throughout your body. An organ is a group of tissues that work together to perform a specific function. Let’s start with a trick question: Is the heart a muscle or an organ? The short answer is your heart is a muscular organ. How Do I Start Training the Cardiovascular System?.How Do You Improve the Cardiovascular System?.
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