Core: Anti Extension Progression 4 & Variations 1–2 By Athlos|2021-07-30T18:16:49+00:00June 4th, 2020| Core 40 views You may also like Core: Stability/Strength Progressions 1–4 Core: Rotation Progressions 1–4 Core: Anti Rotational Progressions 1–3 Core: Anti Extension Progressions 1–3 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail