Sport

The purpose of the activity is to determine the aerobic capacity of the body by predicting and calculating the VO2max of the body. In addition, relationships between predicted VO2max and other factors such as  bodyfat from skinfolds, hours spent on aerobic exercise in a week and the actual VO2max will be determined.

II. Results
1. See Aerobic Capacity data sheet and calculations at the end of the report.

a. Correlation was used to determine the relationship between predicted VO2max and  bodyfat from skinfolds. The null hypothesis to be tested is that there is no significant relationship between  predicted VO2max and  bodyfat from skinfolds. Pearson correlation analysis was conducted at 0.05 significance level. The decision is to reject the null hypothesis when the p-value of the correlation is less than 0.05 significance level. Otherwise, fail to reject the null hypothesis. After conducting Pearson correlation analysis, it has been found out that the Pearson correlation coefficient is equal to -0.819 with a p0.01. The correlation coefficient means that there is a strong decreasing relationship between predicted VO2max and  bodyfat from skinfolds. Since the p-value of the Pearson correlation coefficient is less than the significance level of 0.05, the null hypothesis is rejected. Thus, we are 95 confident that there is a significant relationship between predicted VO2max and  bodyfat from skinfolds.

b. Correlation was used to determine the relationship between predicted VO2max and hours spent on aerobic exercise in a week. The null hypothesis to be tested is that there is no significant relationship between  predicted VO2max and hours spent on aerobic exercise in a week. Pearson correlation analysis was conducted at 0.05 significance level. The decision is to reject the null hypothesis when the p-value of the correlation is less than 0.05 significance level. Otherwise, fail to reject the null hypothesis. After conducting Pearson correlation analysis, it has been found out that the Pearson correlation coefficient is equal to -0.555 with a p0.05. The correlation coefficient means that there is a moderate decreasing relationship between predicted VO2max and hours spent on aerobic exercise in a week. Since the p-value of the Pearson correlation coefficient is greater than the significance level of 0.05, the null hypothesis is not rejected. Thus, we are 95 confident that there is no significant relationship between predicted VO2max and hours spent on aerobic exercise in a week.

Correlation was used to determine the relationship between predicted VO2max and actual VO2max. The null hypothesis to be tested is that there is no significant relationship between  predicted VO2max and actual VO2max. Pearson correlation analysis was conducted at 0.05 significance level. The decision is to reject the null hypothesis when the p-value of the correlation is less than 0.05 significance level. Otherwise, fail to reject the null hypothesis. After conducting Pearson correlation analysis, it has been found out that the Pearson correlation coefficient is equal to 0.891 with a p0.01. The correlation coefficient means that there is a strong increasing relationship between predicted VO2max and actual VO2max. Since the p-value of the Pearson correlation coefficient is less than the significance level of 0.05, the null hypothesis is rejected. Thus, we are 95 confident that there is significant relationship between predicted VO2max and actual VO2max.

III. Closing Paragraph
After completing the lab, I have learned to compute for the aerobic capacity of my body using predicted VO2,max computation. In addition, I have learned several relationships between the predicted VO2max of the body and other factors that can probably affect the aerobic capacity of the body  bodyfat on skinfold and the number of hours spent on aerobic exercises. Lastly, the laboratory also taught me about the relationship between the actual and the predicted values for VO2max.

IV. Data
Computations
Steady State Heart Rate (155  156)2  (311)2  155.5 or 155 bpm
Steady State Workload 4 kg or 1200 kgmin
Predicted VO2max 4.0 Lmin
Age Corrected Predicted VO2max 4.0 X 1.05  4.2 Lmin
Relative Predicted VO2max (4.2 Lmin X 1000 mL)(1 L) X (81.67 kg)
 (4200 mLmin)(81.67 kg)
 51.43 mLkgmin

Aerobic Capacity Data Sheet

SubjectAge 20Bodyweight (kg) 81.67HR target range 150-160Seat height  Bodyfat from skinfolds (from lab  1) 25.96
Cycle-Ergometer WorkloadMinuteForce (kg)Power (kgmmin)Heartrate (bpm)12600130226001313260013343900142539001426412001557412001568910
Steady state HR (bpm) 155Steady state power workload (kgmin) (from Table 1) 1200Predicted VO2max (Lmin) (from Tables 3 and 4) 4.0Age correction factor (from Table 2) 1.05Age Corrected Predicted VO2max (Lmin) 4.2Relative Predicted VO2max (mlkgmin) 51.43Cardiovascular fitness category (from Table 5) Good

In the past month, how many hourswk did you spend doing aerobic exercise (Do not include warm-up, weight training, or activities other than aerobic.)
Be honest 4 hoursweek