What’s in Class This Week?
In continuation of the new series called What’s in Class This Week, I will provide quick summary of what I’m currently teaching at AFNA! If you see something that interests you, contact Roger for an invitation to join our class, or schedule a campus tour today! If you’ve already graduated from AFNA, you are always welcomed to audit one of your favorite classes!
The Cardiovascular System!
Did you know that your heart beats roughly 100,000 times per day? Assuming an average heart rate of 75 beats per minute, that comes out to just under 40 million beats per year! That’s quite an incredible feature when you think about how much work the heart muscle does in the span of a lifetime!
The cardiovascular system is made up of the heart, arteries, veins, and capillaries that help provide blood flow to and from the heart and working organs. On top of that, blood must also reach our muscles, where oxygen and nutrients can be exchanged to maintain power and energy during exercise.
A Strong Heart is a Healthy Heart
Generally speaking, humans are notorious for taking their cardiovascular system for granted. Even in poor health the heart continues to function, albeit at a suboptimal level. When the cardiovascular system is unchallenged, such as during a sedentary lifestyle, it’s organs grows weak. Without the stimulus of challenging exercise, the heart muscle will atrophy, or lose muscle. As such, it is vitally important that humans engage in exercise that challenges the cardiovascular system at least 3x per week.
With plenty of options of cardio training available, the key is finding consistency. Benefits of cardiovascular exercise start to occur as soon as 3-4 weeks into a consistent training regime, and will continue to provide benefits as long as training remains constant. Improving the heart’s ability to pump blood to and from the working muscles will allow muscles to engage in activity for longer periods of time. Furthermore, the heart muscle also grows in size and strength, resulting in more blood being pumped in fewer beats.
In short, cardiovascular training will provide a multitude of improvements for anyone’s health and fitness. The big picture here means a stronger heart will beat fewer times at rest, thus prolonging the lifespan of a heart, and ultimately can result in increasing the lifespan of an individual.
After the Memorial Day holiday, we will continue to dive into the heart anatomy as we track and trace the direction of blood flow through the heart. On top of that, we will talk about different metrics that can be used to measure cardiovascular fitness, such as heart rate, stroke volume, and cardiac output.
To learn more, contact Roger at the Admissions Offices for a tour of AFNA and with the necessary steps to enroll in our curriculum!