RefSix

Dutch Referee Blog - Single Double Single High Intensity Interval Test

  • Thread starter Jan ter Harmsel
  • Start date
J

Jan ter Harmsel

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#1
The Single Double Single High Intensity Interval Test is a new way to test the fitness level of referees. Besides the regular FIFA Fitness test for referees and assistant referees this is an extra option. It will officially be used at the highest levels, but you might want to give it a try. In this […]

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