During the Fire Dept. you are given the following questions; A 35 e pts talervie

Question

During the Fire Dept. you are given the following questions; A 35 e pts talerview procs for a ful-time TSAC specialist (what is that?) position with L.A. County year old firefighter is ascending stairs at a rate of 3 1/2 noor/min with full equipment weighing -12 METS on avg 85lbs (includes the According to recent 1. What is t SCBA with 57.3 L of O2). Evidence suggests this work is testing his VO2max-SAsumin, he weighs 2001bs, and he has 10% body fat. his relative VO2max? What physiological factors determine his vo2max and what influences those relative intensity for him, and how would you categorize it? "Relative" means what in this case? physiological factors? (Got Fick?) 3. Any idea of his expected SS HR in response to this relative intensity? How long will that 02 last him? (If the SCBA tank is rated for "30 min", why did you get

Explanation / Answer

1. as 1lb= 0.4 kg , so , 200lb will be approx 90 kg, therefore the relative v02 max is the ratio of absolute vo2 max to that of the weight which is 5.45/90= 0.605 L/kg/min.

the physiological factors that determine it are count of red blood cells, haemoglobin concentration, alveoli and mitochondial count and capillary density. the factors which influences these parameters are altitude , gender, genetics, size, temperature and age

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