You have read that caffeine can influence the duration of HIIT

Scenario

You have read that caffeine can influence the duration of HIIT; however, there is some discrepancy in the literature regarding the quantity of caffeine. You want to better understand if there is a relationship between caffeine and HIIT. You want to see if there is a way to predict the effects of caffeine and exercise duration (it might be that the athletes you work with would benefit from a dose of caffeine before competing).

You have recorded:

• preferred caffeine intake (mg/kg)
• how long they are able to continue exercising (mins).

Using this information, you feel you might be able to make predictions using the amount of caffeine a person consumes to estimate how long they would be able to exercise.

Aim:

1.Based on the above information, assess the appropriateness of using ‘caffeine dose’ in the prediction of ‘exercise duration’.

2.Using this prediction model, report the likely exercise duration for a person who consumes a caffeine dose of 5mg/kg.

Scoring of each measure:

Self-selected caffeine dose: the preferred quantity of caffeine consumed before exercise (measured in mg/kg)-

Duration of exercise: duration the participant is able to continue with the exercise session; longer durations indicate higher exercise tolerance (measured in minutes).

Based on the specified scenario, provide the:

1.Descriptive statistics for all of the participant demographics and outcome variables

2.Produce appropriate graphical representation

• Graphs/plots

3.Choose and run the appropriate statistical test(s)

• State and justify the statistical test you have chosen
• Test the appropriate assumptions [if the assumptions are violated you can note this but continue with the analysis as though you had not violated the assumptions]
• Run the test

4.Report the findings in full, as would be expected for publication, and interpret meaning and provide a layperson interpretation

5. Using this model, report the likely exercise duration for a person who consumes a caffeine dose of 5mg/kg