Ken Chin did a core fitness workout: great way to warmup f...

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    • Currently 4/5 Effort.
    effort 4/5
great p90x ab ripper x 00:15:00

great way to warmup for the track workout!

  • Mark R.
    Mark R. Nice Job
    Nice Job:

    ouch. i tried that DVD once. That things a killer!

    about 4 years ago

  • Ken C.
    Ken C.

    hurts just the first time! ;)

    about 4 years ago Like

  • Frank Z.
    Frank Z.

    Nice job! I used to be a beachbody coach! Great workouts!

    about 4 years ago Like