Using kettlebells to warm up saves time and makes your training more efficient. Substitute lighter weights and dynamic movements for the treadmill or stationary bike.
By simply adding some weight and turning up the heat you can transform “warming up” to “getting it on.”
I’m a big fan of multi-joint compound movements. They not only work more muscle groups, but they teach you how to move more efficiently and increase athleticism and functionality. More dynamic lifts engage more systems, and give you more bang for your buck than a bicep curl or wasting time on the floor doing crunches. Throw this great exercise into your training program and throw out some of those tired old one-body-part-at-a-time, time wasters.