hs 78 kg, has a VOzmax of 53 mL/kg/min. He wants to exercise on a cycle ergomete

Question

hs 78 kg, has a VOzmax of 53 mL/kg/min. He wants to exercise on a cycle ergometer at 70% of his VO2max. a. What workload (kgm/min and Watt b. Assuming an RPM of 70, what resistance should he used on the Monarch bike? s) should he cycle at? 2. Molly, who weighs 130 lbs, has a VO2max of 47 ml/kg/min. She want to exercise on a treadmill at 75% of her VO2max. Assuming a walking speed of 3.0 mph, what grade should she set the treadmill at? a. Bob, who weighs 200 lbs, has a VO2max of 5.200 L/min. treadmill at 70% VO2max. 3. He wants to exercise on a Assuming a running speed of 5.0 mph, what grade should he set the treadmill at? a. Veronica, who weighs 140 lbs, has a VO2max of 38 mL/kg/min and a resting VO2 of 3.7 ml/kg/min. You, the exercise physiologist, want her to walk on a treadmill between 60 and 80% of her oxygen uptake reserve (VOR). 4. a. What is her target VO2 range (ml/kg/min) for this range of intensity? b. Assuming a walking speed of 3.3 mph, what range of% grade will you tell her to set the treadmill at? Using the Prediction Equations to Determine Caloric Expenditure Bill, who weighs 70 kg, is cycling at a workload of 150 Watts. How many calories is Bill expending every minute at this intensity? 1.

Explanation / Answer

Please post seperate questions seperately

1. Max level is 53 ml/kg min, he is working at 70% of this level.

Given that he weigh 78kg

,his per minute intake of oxygen will be = 53 * .7 * 78 = 2.89 lit/min

hence the workload will be = Energy produced by 1 lit of oxygen * intake =

We know that oxygen consumption into kilocalories is 4.8 kcal/l O2

W = 4.8* 4184 *2.89 /60 = 967 W

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