What you need to know: Instructor: Cathe Friedrich. Length: 41 mins. Equipment needed:  30 & 45# barbell, 12 & 15# dumbbells (I also used 20 & 22# dumbbells & a 40# kettlebell), a chair & a mat. Optional - Lifting gloves. Fun Factor: 4/5. Sweat Factor: 3/5. Coordination: 1/5