[Surgicalcric]

Compound movements are those requiring more than one muscle group (ie: squat, deadlift, cleans, snatch, bench, bent-over rows, military press.) They are also the ones where acceleration thru the movement is most important. These should be done first in a routine since they will tax your system the most. Exercises such as leg extensions, leg curls, bidep curls, tricep extensions, shrugs, rack pulls, calf raises, deltoid raises, etc are focusing on / isolating one muscle group at a time and are generally performed after the large groups are fatigued or scheduled for another day as is the case for arm work.

There are exceptions to this but thats a another discussion altogether.

HTH,

Crip