Harley1980 wrote:
During the period in which there are no competitive races, two runners--Runners A and Runners B--take part in an experiment measuring their VO2 max, the volume of oxygen an athlete can use. During these sessions, the runners engaged in moderate aerobic activity, or a sustained heart rate between 146-154 beats per minute. At the end of the sessions, Runner A had a greater VO2 max than Runner B. Therefore, once the two runners begin identical intensive training--sessions involving over 168 beats per minute-- for the race season, Runner A will continue to have the greater VO2 max, assuming that neither become injured and that both train with similar intensity.
Which of the following is an assumption upon which the argument rests?
A) Runner A and Runner B had similar VO2 maxes uponentering the study.
B) Regarding their VO2 maxes, runners respond equally to intensive training.
C) Intensive training involves sessions in which athletes maintain a heartbeat over 168 beats per minute.
D) The amount one trains does not influence one’s VO2 max.
E) During the experiment, Runner A did not always have the greater VO2 max than Runner B.
Simplify: VO2 measurement between A &B
engaged in conditions: mod activity and 145-154 beats/min
Results : Vo2(A) > Vo2(B)
some missing assumptionConclusion : if identical training imparted, definitely Vo2(A) > Vo2(B)
Solution : Use negation method.
A) Runner A and Runner B
did not have similar VO2 maxes upon entering the study --> This doesn't affects the conclusion in any way .
B) Regarding their VO2 maxes, runners respond
differently to intensive training --> IF this was the case,
then conclusion falls apart. It might be that due to difference in response, Vo2 B might be greater than Vo2 A. This is the answer.
C) Intensive training
doesn't involves sessions in which athletes maintain a heartbeat over 168 beats per minute --> This tells about the the consistency of heartbeat, but in no way it affects the conclusion as to why Vo2(A) should be greater than Vo2(B).
D) The amount one trains
influence one’s VO2 max. --> The argument says that “both will train with similar intensity” and will engage in “identical intensive training”.
E) During the experiment, Runner A
always have the greater VO2 max than Runner B --> This mentions that there was no affect of identical training conditions, that there was by default some great powers in A. so this too doesn't affect the argument as to why Vo2(A) should be greater than Vo2(B).