Given: 1. Stretch-out subject and have sit quietly on bike for VO2 measures. 2.

ID: 1658705 • Letter: G

Question

Given:

1. Stretch-out subject and have sit quietly on bike for VO2 measures.

2. Collect VO2 for 4 min.

3. Have subject start pedaling at 100 watts (60 rpm, 1.7 kp)

4. Measure VO2 every 30 sec.

5. Pedal for 8 mins

6. Stop pedaling and measure VO2 for 8 mins.

4 students were studied weights:

student 1: 68.2 kg

student 2: 104.5 kg

student 3: 50.0 kg

student 4: 84.1 kg

1. What is the estimated VO2 for workload for each student:

a. Multiply workrate by 6.12 (to convert to kgm/min)

b. Multiply workrate (kgm/min) by 2 (to convert into total O2 cost)

c. Divide total O2 cost by subject’s weight (kg)

d. Result equals the estimated VO2 for the workload.

Workrate =100 watts =100*6.12 kgm/min =612 kgm/min.

Total O2 cost = 2*612= 1224

VO2 for each student= (Total O2 cost)/(student weight)

Student 1: VO2 =1224/68.2 = 17.947

Student 2: VO2 =1224/104.5 = 11.712

Student 3: VO2 =1224/50 = 24.48

Student 4: VO2= 1224/84.1 =14.554

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