CXWORX™(I) really hones in on the torso and sling muscles that connect your upper body to your lower body. It’s ideal for tightening your tummy and butt, while also improving functional strength and assisting in injury prevention. It’ll help you run faster … play harder … stand stronger!Highly-trained instructors explain the science behind each exercise and challenge you to reach beyond your limits. Like all LES MILLS™ programs, a new CXWORX™ class is released every three months with fresh music and exercises. Non-impact and adjustable for all fitness levels.