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Author Question: The formula 220 minus age A) should be used only by athletes as their training heart rate. B) ... (Read 100 times)

deesands

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The formula 220 minus age
 
  A) should be used only by athletes as their training heart rate.
  B) represents the lower threshold for an optimal training heart rate.
  C) represents the target heart rate for effective cardiorespiratory training.
  D) is a rough estimate of your maximal heart rate.

Question 2

Dr. Sullivan is conducting a clinical trial to determine if vitamin XX can improve test performance of students in an introductory college nutrition course. Dr.
 
  Sullivan puts all the students' names in a hat and draws names to determine if they will be placed in the control or the experimental group. The experimental group receives a capsule of vitamin XX and the control group a sugar pill that tastes and looks identical to the vitamin XX capsule. Neither Dr. Sullivan nor the participants know who is receiving which treatment. This experiment is BEST described as
  A) single-blind, randomized. B) double-blind, randomized, placebo controlled.
  C) double-blind, placebo controlled. D) single-blind, randomized, placebo controlled.


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sarahccccc

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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