sexygymchicks: @karleeforniaa: Abs abs abs!! Round 1: Hold plank position & then dip up & down for 20 seconds, rest for 10 seconds. 4 sets EACH side=8 in all Round 2: hold hollow rock for 20 seconds, rest for 10. 8 sets!! Keep your core as tight

sexygymchicks: @karleeforniaa: Abs abs abs!! Round 1: Hold plank position & then dip up & down for 20 seconds, rest for 10 seconds. 4 sets EACH side=8 in all Round 2: hold hollow rock for 20 seconds, rest for 10. 8 sets!! Keep your core as tight

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from: https://rusted18.tumblr.com/post/72181864086