assessment by liwenting

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									Frank Jackson

Tech. and Assess.

Assessment Project

Dec. 5. 2008



   1.     The purpose of this particular scale is to measure the perceived exertion of an athlete and is
      called the Borg Scale. This is number based, starts at six and ends at 20. The scale is used
      during exercise to predict their current heart rate by using their perceived exertion and
      multiplying that choice by 10. This final number should be, or should be close to, the subject’s
      actual heart rate.
   2.    This scale is not limited to any particular population. Many different groups of people may
      use this test regardless of age, sex, athletic ability, race, etc. It is not specific to one individual
      client base.
   3.    The Borg Perceived Exertion Scale may be used by several different groups of people. As
      athletic trainer, I may want to use the scale to determine the fitness level of an athlete trying
      about to return to an activity. For example, if a cross country runner has been out of
      participation for a week and he is finally cleared to run, I may want to test his cardiovascular
      endurance before letting him run with the other team members. If he/she rides the bike for 20
      minutes and their perception of exertion is a 17 on the scale, that correlates with a heart rate of
      170 beats per minute. For a cross country runner, 170 bpm is extremely high and this particular
      athlete would definitely not be ready to run with the rest of the team.
         Another way I may be able to use this scale would be in finding out how well the athlete
      knows their own body. For example, consider a wrestler who may have just been put through a
      sprint program for conditioning. One can use the scale in order to determine the athlete’s
      ability to realize how hard their body is working. If after the test the wrestler claims that he felt
      a perception of 12 on the scale and his heart rate is actually 170 bpm, he is not aware of the
      intensity of the exercise he just performed and the strain it has put on his body. The same goes
      for an athlete that chooses too high of a number on the chart as compared to their actual heart
      rate. This particular subject perceives the exercise as much more strenuous.
         I am sure that others, such as Physical Education teachers, personal trainers, physical
      therapists, etc., would use the Borg Scale for other reasons as well, but these are two reasons it
      may be used from an athletic training standpoint.
   4.    It is important to realize a subject’s level of perceived exertion in order to determine if they
      are ready for a full return to play decision. As stated previously, if an athlete’s heart rate is not
      close to what it should be, their cardiovascular endurance may not be adequate for full
      participation. A long distance swimmer jogging for five minutes and scoring high on the rating
      scale is a prime example of this. Also, by correlating the perceived exertion to actual heart rate,
      one can determine that athlete’s ability to assess actual strain on their body. This is particularly
   helpful when considering injury. If an athlete scores much less on the chart than the associated
   heart rate, they are not aware of the stress and may become injured or over exert themselves
   without realizing it. This type of athlete might be the type that seems to never get hurt. At the
   other end, an athlete guessing high with a low associated heart rate would be too aware of the
   strain on their body and might be the type who always seems to have an ailment.
5.    Subjects using the Borg Scale should be within 1-2 points of properly determining their heart
   rate. Remember that the scale goes from 6-20 with each number in between representing heart
   rate once multiplied by 10, so that 6 on the chart means a heart rate of 60, 10 on the chart
   means a heart rate of 100, and so on.
6.    Test administrators, or in my case, Athletic Trainers, should have a good knowledge of the
   particular athlete’s sport. A wrestler’s exertion for a particular test may be quite different than
   the perception of a badminton player performing the same test. Different athletes might have
   different tests, each one possibly representing their sport. Equipment may include exercise
   bikes, treadmills, stopwatches, whistles, cones, etc., all depending on the tester’s idea of how to
   perform an exertional test.
7.    Results of the test would not necessarily be used for grading, at least not in a sports medicine
   setting. One may use results to determine an athlete’s ability and readiness to fully participate
   in a particular sport or activity. Also to compare their cardiovascular fitness level to another
   athlete in the same or similar activity.




Quinn, Elizabeth. A Simple Way to Determine Exercise Intensity. Retrieved Dec. 2. 2008, from
http://sportsmedicine.about.com/cs/strengthening/a/030904.htm
                  Scale of Perceived Exertion



6    No exertion at all

7    Extremely Light

8

9    Very Light

10

11   Light

12

13   Somewhat Hard

14

15   Hard

16

17   Very Hard

18

19   Extremely Hard

20   Maximal Exertion

								
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