Question

Directions: Complete the calculations below. To receive credit for this assignment, you MUST show all of your calculations and work.

1. Calculate the following:

1. 75% HRR for a person with the following data (2 points):

Resting HR: 77 bpm

Max HR: 188 bpm

2. 55% VO2R for a person with the following data (2 points):

VO2max: 36.78 ml/kg/min

      Resting VO2: 8.99 ml.kg/min

3. 6.2 L/min to METs (for a 220 lbs person) (1 point)

2. a) Calculate the predicted NET oxygen cost (ml/kg/min) of running at 6.5 mph up a 6% grade. Use the ACSM metabolic equation for running and assume a resting VO₂ = 3.5ml/kg/min.

(2 points)

b) How many METS is this? (1 point)

Answer 1

.1. Calculate the following:

75% HRR for a person with the following data (2 points):

Resting HR: 77 bpm

Max HR: 188 bpm

Answer

HRR(Heart rate reserve) =(heart rate maximum) HR (max) - HR (rest)

=188 – 77

=111

For HRR 75 %=111 x 0.75 (75 %)

=83.25.

2. 55% VO2R for a person with the following data (2 points):

VO2max: 36.78 ml/kg/min

      Resting VO2: 8.99 ml.kg/min

Answer

The formula used to calculate the target workload as a percentage of VO2R (%VO2R) is: Target work rate will correspond to the VO2 = (intensity fraction%)(VO2peak – VO2rest) + VO2rest (3)

=0.55 x( 36.78 -8.99) + 8.99 (3)

=30.12

1. One MET is approximately 6.2 litres of oxygen consumed per kilogram (kg) of body weight per minute.

Patient weight 220 pounds transfer to k.g

1 pound =0.45 kg

220 pounds=220 x 0.45

Patient weight in kg=99.8 kg

One MET =6.2 x 99.8

=618