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Calculation of Mean and Standard Deviation for Oxygen consumption in males and females

Question

1. Using Microsoft Excel, plot the following data on to a single graph. Include appropriate figure titles etc. and paste this into your answer document. Be sure to include the error bars for the standard deviation (SD). Please also make sure that you provide an appropriate description of this figure.

Oxygen Consumption (ml/kg/min)

 

Males

 

Females

 

Workload(W)

Mean

 

SD

Mean

SD

50

9.5

 

1.2

9.0

1.4

100

15.8

 

1.3

16.1

2.0

150

22.7

 

1.0

22.0

2.2

200

31.9

 

0.9

31.4

2.7

250

42.7

 

0.7

38.1

3.0

300

48.5

 

0.7

42.2

3.1

350

55.9

 

1.2

55.1

2.0

400

67.5

 

1.4

62.2

2.1

450

73.5

 

1.7

68.0

2.5

 

500

83.0

 

2.0

 

 

 

b)  Based upon these results estimate the cardiovascular  training status (i.e. sedentary, untrained, well-trained, highly trained and elite) of these groups (i.e males and females). In your answer discuss what other factors may be related to endurance performance.                                                      

Participant

Number

Gender

Maximal Oxygen Consumption    (ml/kg/min)

1

Male

52.2

2

Female

48.1

3

Male

50.8

4

Male

60.9

5

Female

45.1

6

Female

47.8

7

Male

68.0

8

Male

60.4

9

Female

57.1

        10           Female                          52.7                      

c)  Using the data from the table above calculate the average maximal oxygen consumption (and standard deviation) for both males and females. In your answer make sure you round your answer off to one decimal place, include standard deviations and the unit of measurement                              

Males:                    _

Females:                _

 

2. Explain why is there a difference in VO2 max between:

a) Males and females

b) Middle-aged and older populations

 

3.  a)  Is the respiratory system a rate-limiting factor for VO2 max in normal healthy participants? Briefly explain.

b)  Explain what other factors may limit maximal oxygen consumption and what are the most likely factors limiting it?                                                  

4.   Discuss  the  possible  causes  of  the  elevated  VO2   during  recovery  from exercise? What is the term used to describe this phenomenon.             

5.     a)  Briefly discuss the role of the nervous system in regulating changes in heart   rate   during exercise of increasing intensity (include   regulatory mechanisms).                                                                                          

b)  Explain how blood returns to the heart.  Why should one “cool down” after vigorous exercise rather than stop abruptly.

6.  Explain the  physiological processes  responsible  for  the  vertigo  (dizziness) experienced when one hyperventilates.

 

Summary

The question belongs to Statistics and it is about data interpretation on workload and oxygen consumption. The question discusses about the mean and standard deviation on workload and oxygen consumption in both males and females. Apart from this, minimum and maximum oxygen consumption also has to be calculated.

Total Word Count 767

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Comments

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