30-day Core Challenge


Ed Rusk


5 Weeks

Typical Week

5 Strength, 1 Day Off

Plan Specs

fitness strength

This plan is protected by our Refund Policy and may, with the author's approval, be exchanged for a plan of equal value from the same author.


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a 30-day plank, mtn climbers plank, side plank challenge

Back to Plan Details

Sample Day 1

plank test

hold a regular plank as long as you can, record the time

Sample Day 2

30-second plank

Sample Day 3

2 - 30 second planks

Sample Day 4

3 - 30 second planks

Sample Day 5

4 - 30 second planks

Sample Day 6

5 - 30 second planks

Sample Day 7

OFF - planks

30-day Core Challenge

$5.00 - Buy Now