Why You Should Do Cluster Training & How Does It Look Like? Cluster sets can take different forms, and there isn’t a one-size-fits-all cluster set structure. That said, you can program cluster sets for any of the three main training adaptations — power, strength, and hypertrophy. Typically, cluster sets are used for compound movements since they’re meant to increase the load on the bar, and multi-joint exercises let you use more weight. However, while less common, you can also use cluster sets f