30/60/90 Workouts

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Has anyone done the 30/60/90 workout featured in FITNESS Magazine? I did it today and liked it alot.

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  • runnerwithstyle
    runnerwithstyle Posts: 146 Member
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    Has anyone done the 30/60/90 workout featured in FITNESS Magazine? I did it today and liked it alot.
  • Mangoaddict
    Mangoaddict Posts: 1,236 Member
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    pardon my ignorance, but what is it?