Prinable 30 Day Abs Challenge. Hint: Planks turn into pikes and crunches turn into flutter kicks. This plan also incorporates rest days, so while you can hold off Ready for another workout challenge?
Equipment needed: yoga mat; interval timer (Gymboss app is a free download from your mobile or tablet).
Get abs like a fitness model with this four-week abs exercise routine that will reshape your core, flatten your belly, and give you definition whether you're a beginner or advanced bodybuilder.
The challenge is for anyone who wants carve belly and strengthen your center. There should be a challenge for whatever level you're on! Each day is assigned a task, and it's up to your creative kiddo to complete it!