Practice Quiz

Group Fitness Instructor

Category - Timing

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The traditional prediction equation of maximum heart rate (220 - Age) was first adopted in the 1970’s as it was easily used in a group format to help instructors maintain a safe exercise environment. However, this method has potential errors built into the formula. Tanaka, Monahan and Seals offered this alternative in 2011:
  1. 220 - (.7 x age)
  2. 220 - (.8 x age)
  3. 208 - (.7 x age)
  4. 208 - (.8 x age)
Explanation
Answer: C - Tanaka and colleagues offered the following method of calculating maximum heart rate: 208 - (.7 x Age). This method is more accurate than the traditional method (220 - Age) as the traditional method is subject to a standard deviation of + or - 12 beats/minute. A 30 year old woman’s maximum heart rate would run 220-30 or 190 with the traditional formula. With the revised formula, the maximum heart rate would run 208 - (.7 x 30) = 193.
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