A 35 year old firefighter is ascending stairs at a rate of 3 1/2 floors/min with

Question

A 35 year old firefighter is ascending stairs at a rate of 3 1/2 floors/min with full equipment weighing 85lbs.(includes the SCBA with 57.3 L of O2). Evidence suggests this work rate is = 12 METS on avg. According to recent testing his VO2max = 5.45L/min, he weighs 200lbs, and has 10% bodyfat. 1. What is his relative VO2max? What physiological factors determine his VO2max and what influences them? 2. What is the relative intensity for him, and how would you categorize it? "Relative" means what in this case? 3. How long will that O2 last him? (If the SCBA tank is rated for 30 min, why did you get

Explanation / Answer

1) The fire fighter's recent VO2 max is 5.45 L/min.

His weight is 200 lbs (91 kg)

Relative VO2 max,

= 5.45 L/min

= 5450 ml/min

= 5450/91

= 59.89 ml/kg/min

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