Physical Activity Is A Crucial Requirement Towards Leading A Healthy Lifestyle

1374 Words Aug 4th, 2016 null Page
Physical activity is a crucial requirement towards leading a healthy lifestyle. Exercise can improve an individual’s overall health as well as reduce the risk of developing certain diseases such as high-blood pressure, type 2 diabetes and cardiovascular disease. Exercise can also improve an individual’s physical appearance (Health Discovery, 2016).

When exercise is performed, the muscles within the human body constantly relax and contract, this requires energy. Energy is sourced from a chemical referred to as adenosine triphosphate (ATP) which is comprised of an adenine base, ribose and three phosphate groups bonded together (Bergman, 1999). As the bond between the second and third phosphate group is broken, the ATP molecule converts into adenosine diphosphate (ADP) and phosphate, as a result of this, the energy that muscle cells use during physical motion is produced (Greeshma, 2016). ADP can be converted back to ATP so that it can be used again, this is known as the ATP-ADP cycle (Figure 1).

The mitochondria of the cell produces ATP under aerobic conditions where there is a sufficient level of oxygen available. This process utilises glucose, which is obtained through consumption of various foods. The glucose then reacts with oxygen to form carbon dioxide, water and energy (ATP) (Hyper Physics, 2000). C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy

In the case of intense or…

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