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, …show more content…
It was hypothesised that the dominant hand would sustain an increased number of bicep curls in comparison to the nondominant arm. If findings demonstrate a larger number of bicep curls were conducted by the dominant hand, then the hypothesis is supported. The independent variable in this investigation was the dominant and nondominant hand and the dependent variable was the mean number of bicep curls performed. One factor which was kept constant was ambient temperature, this was done in order to sustain a consistent environment for the muscles. The mass of the dumbbell and exercise period of 2 minutes and 30 seconds remained constant in order to provide a fair test between the dominant and nondominant
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, …show more content…
It was hypothesised that the dominant hand would sustain an increased number of bicep curls in comparison to the nondominant arm. If findings demonstrate a larger number of bicep curls were conducted by the dominant hand, then the hypothesis is supported. The independent variable in this investigation was the dominant and nondominant hand and the dependent variable was the mean number of bicep curls performed. One factor which was kept constant was ambient temperature, this was done in order to sustain a consistent environment for the muscles. The mass of the dumbbell and exercise period of 2 minutes and 30 seconds remained constant in order to provide a fair test between the dominant and nondominant