This was a discussion post that I made for my Anatomy & Physiology II class – figured it would be a good topic to share since it’s pretty rare I get the chance to discuss a topic I’m good at – FITNESS. Enjoy! :0)
This is a fun topic for a fitness trainer. The cardiovascular system is complex, but it’s even more complex when you start to factor in exercise while explaining it.
Aerobic fitness is an important component of physical fitness. When your muscles need oxygen, your aerobic (cardiovascular) system must be able to efficiently deliver it to them. When your body has waste products that need to be expelled (e.g. carbon dioxide and metabolic waste products), your heart-lung complex must be up to the task. These two tasks form the functional basis of aerobic fitness.
Positive effects include increasing your level of available energy, aid in relieving depression, reduce the risk of heart disease, increase the good (HDL) cholesterol. Everyone needs to be able to efficiently take oxygen into their lungs and blood and pump it to their working muscles where it is utilized to oxidize carbohydrates and fats to produce energy. If you are concerned about your health, particularly the risk of heart disease, you need to accept the fact that aerobic training can have a critical effect on the quantity and quality of your life.
Some negative effects of exercise on the cardiovascular system can include a possible heart attack or stroke. Some people can tend to push themselves to hard or they can start off working out by pushing their heart a little harder than it’s used to. It’s not a very good idea to go out and try to run a marathon if you have spent most of your life sedentary. I used to be one of those people until I found out in 2007 that I had Tachycardia (a heart rate that is too fast). I had to adjust my workouts to accommodate the situation to include slowing down my runs and taking longer rest intervals when lifting weights.
Karen Hellesvig-Gaskell. (2011). Negative Effects of Exercise on the Cardiovascular System. Retrieved from http://www.livestrong.com/article/417085-negative-effects-of-exercise-on-the-cardiovascular-system/