A caffeinated version of LifeTime's "Total Conditioning" class, TCX consists of intense exercise from first minute to last. Try XTREME, the brand new evolution of our flagship fitness class TCX – you will challenge. This easy to follow athletic-based interval class works your entire body through muscular. Leeanne Fitzgerald teaching TCX (Total Conditioning Extreme) at Lifetime Fitness Dublin, OH. Oct 13, 2014 - This easy to follow athletic-based interval class works your entire body through muscular strength and endurance training with a cardiovascular. Aug 17, 2019 - Explore Julie Cullen's board "TCX Exercises" on Pinterest.