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These total-body circuits are a challenging test of strength and endurance to add to your training.

Being physically fit can mean a number of things:

 

  • Having the ability to run a marathon.
  • Squatting or deadlifting for a set of ultra-high repetitions.
  • Completing a triathlon or an obstacle course.
  • Running a series of demanding intervals with minimal rest between.
  • Completing a thirty-minute hard-core boot camp class.

 

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