High School

Calculate the volume of oxygen, in mL, consumed in 1 hour by an average man who weighs 182 lbs and has a Vo2max reading of 47.5 mL O2/kg body mass/min.

If this man lost 20 lbs, exercised, and increased his Vo2max to 64.8 mL O2/kg body mass/min, how many mL of oxygen would he consume in 1 hour?

Answer :

To calculate the volume of oxygen consumed in 1 hour by the average man, we can use the following steps:after the weight loss and increased Vo,max, the man would consume approximately 320,180.678 ml of oxygen in 1 hour.

Step 1: Convert the weight of the man from pounds to kilograms.

182 lbs * 0.4536 kg/lb = 82.5532 kg

Step 2: Calculate the oxygen consumption rate in ml O2/kg body mass/min.

47.5 mL O2/kg body mass/min

Step 3: Convert the oxygen consumption rate to ml O2/hr.

47.5 mL O2/kg body mass/min * 60 min/hr = 2850 mL O2/kg body mass/hr

Step 4: Calculate the volume of oxygen consumed by the man in 1 hour.

2850 mL O2/kg body mass/hr * 82.5532 kg = 235277.526 mL O2/hr

Therefore, the average man would consume approximately 235,277.526 ml of oxygen in 1 hour.

To calculate the volume of oxygen consumed after the weight loss and increased Vo,max, we can use the same steps with the updated Vo,max value of 64.8 mL O2/kg body mass/min.

Step 1: Calculate the oxygen consumption rate in ml O2/hr.

64.8 mL O2/kg body mass/min * 60 min/hr = 3888 mL O2/kg body mass/hr

Step 2: Calculate the volume of oxygen consumed in 1 hour.

3888 mL O2/kg body mass/hr * 82.5532 kg = 320180.678 ml O2/hr

Therefore, after the weight loss and increased Vo,max, the man would consume approximately 320,180.678 ml of oxygen in 1 hour.

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