Is planking the best way to tone your abs?
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you bet I've been doing the snowboarding for about 8-12 minutes every other day, starting with arm swings and increasing intensity for 1 1/2 minutes. First increased time in the plank, then added Thor his plank, then slowed down the plank and held the position in various extensions.
you bet I’ve been doing the snowboarding for about 8-12 minutes every other day, starting with arm swings and increasing intensity for 1 1/2 minutes. First increased time in the plank, then added Thor his plank, then slowed down the plank and held the position in various extensions.
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