Answer :
Final answer:
The RV02 of a 198 lb. woman running at 7 mph at a 14 % grade cannot be determined without additional information such as oxygen consumption rates. Calculations of relative VO2 typically require physiological data and the activity's MET value.
Explanation:
The scenario presented does not provide the necessary details to directly calculate the relative VO2 (RV02) of the said activity. Calculating VO2 or relative VO2 usually requires knowledge of oxygen uptake which is not provided here. Even if we had the oxygen uptake, deriving VO2 also requires considering several physiological factors such as the person's weight, age, gender and the specific activity's metabolic equivalent (MET). For accurate determination, specialized equipment is generally required. Based on the options provided (a) 16.4, (b) 17.2, (c) 18.9, and (d) 19.7, without additional context or data such as oxygen consumption rates or a table with MET values specific to the activity, an exact answer cannot be determined from the information given.
For determining work output and efficiency on a treadmill, other sample questions provided hint at the need for information regarding power output or oxygen consumption over time. For example, to calculate the efficiency of a subject who puts out work at the rate of 100 W while consuming oxygen at the rate of 2.00 L/min, one would use a relevant formula or reference to a provided table (which is hinted at but not provided here).