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ANALYSIS

HYPOTHESIS

There is an optimum time of the day for working out that varies between individuals

MEASUREMENTS

Throughout the duration of experiment:

  • Subjects will keep the amount of sleep, beats per minute of music and calorie intake constant as a way to isolate the variable we are testing. By keeping these variable constant, we will obtain a more accurate result.

  • The measurement of heart rate before and after workout will be a measure of the intensity of workout. This will also be related to the amount of energy exerted by subject when doing the workouts. With this data, we will be able to analyse how the time of the day effects the intensity of workout and the ability to exert maximum power.

  • Percent exertion will be found (Equation 5) which demonstrates how much your body exerts at that time when the subject runs

 What will be done with the data: 

  • Individual subject data will be compared to themselves for the different days which workout was done to identify any particular trend. All individual subject data will then be accumulated to compare how the performance of subjects are effected by the time of the day in which workout is performed. The means of each subject will be compared at the different times of the day and ANOVA along with t-tests will be used to answer if there is a significant difference in the means for a given subject.

Before the start of the experiment:

  • Subjects are required to record their height, body mass, and body mass index (BMI) (Equation 1).These measurements are the constant variables of this study. To obtain the measurements needed to conduct this experiment, we collect various sets of data including heart rate before and after workout.

The main type of workout that we will focus our experiment on are 100 meter sprint:

  •  Subjects are required to intentionally workout at different times of the day and measure their performance during the different times of the day.

  • Aside from the measurements stated above, we will measure the time taken for subject to complete 100m. The time taken will then be used to calculate the velocity of the subject and this value will be used to calculate the kinetic energy (Equation 2) and power (Equation 3) exerted by subject. 

POINTS FOR FURTHER STUDY

  1. We could add other variables, such as how the beats per minute of music listened to during a workout affects amount of work done

  2. Add more time intervals throughout the day (larger sample size) to obtain a better representation of the amount of work done vs time of day

  3. We could include more subjects

  4. Keeping calorie intake constant  

Part A:

Collect data from each individual and graph their mean for each time.

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Part B:

Perform an ANOVA two-factor with replication test to compare each individual to themselves. This is a type 1 test with 2 tails.

After comparing these results, we predict a trend that there will be a considerable difference between the average power output in the mornings and later in the day. Comparing a workout at 8 am and  8 pm, we all expect to have a higher output at night, and around 3 pm we also see a higher power output than in the morning. The experimental data that we collect will tell us which if this times results in the best overall performance.   

CONCLUSION

Figure 1

Figure 2

Figure 1

Figure 3

Figure 4

We will calculate power for each subject at different times of day, as shown in Figure 1, 2, 3 and 4 shown above

Figure 5: Average Power exerted during a 100 m sprint by different people through various times during the day

Part C: 

Plot data that demonstrates how much power a person exerts in a workout to find a trend

INTRODUCTION

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This page gives an overview of the hypothesis, the measurements that will be collected, predictions on the outcome of the data, and points for further study.

HYPOTHESIS

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  • Alternative Hypothesis 1: Power during a 100 m sprint does change over the course of a day 

  • Null Hypothesis 1: P

  • ower during a 100 m sprint doesn't change over the course of a day

  • Alternative Hypothesis 2: Given the same time of day, individuals will exert a different amount of power 

  • Null Hypothesis 2: Given the same time of day, individuals will notexert a different amount of power

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