University of the West of England
--------------------------------------------------------------------------------------------------------------------

 

Calculation of Uncertainty (heart rate)

 

Link to: Video Answer

In a treadmill exercise, an athlete recorded his heart rate, HR (beats per minute), as a function of his rate of oxygen consumption, V ' (ml kg-1 min-1) as listed below:

V '  (mL kg-1 min-1)

18.3

21.3

23.3

26.2

HR  (bt min-1)

130

140

150

160

 

i)          Enter suitable functions and calculations in your spreadsheet to calculate the best-estimate value for V ' when HR = 185 bt min-1.

 

ii)         Enter suitable functions and calculations in your spreadsheet to calculate the following uncertainties in the value of V '  for HR = 185 bt min-1:

         standard deviation uncertainty in V ', uV ',

         confidence deviation, Cd V '

         confidence interval, CIV '
(assume that HR = 185 bt min-1 is an exact value)