Compound lift
Also called compound exercise, multi-joint exercise, compound movement
A compound lift is an exercise that bends and straightens more than one joint at once, so several muscles share the work.
In plain words
Researchers call it a multi-joint exercise. Its opposite is an isolation lift, or single-joint exercise, where one joint moves and one muscle does most of the work. A 2017 study by Paoli and colleagues names the bench press and squat as multi-joint exercises, and the dumbbell fly and knee extension as single-joint ones. The ACSM's 2009 position stand recommends doing multiple-joint exercises before single-joint ones in a session. One lift does not mean one muscle: a compound lift always shares the work.
An example
The bench press moves two joints, the shoulder and the elbow. The chest does most of the work; the shoulders and triceps help. A dumbbell fly moves only the shoulder, so for the chest it is an isolation lift. In Paoli's study, 36 physically active men trained three times a week for 8 weeks on one kind or the other, with total work matched. Both groups gained strength; the multi-joint group gained more: bench press one-rep max up 10.9% against 8.1%, squat up 13.8% against 8.3%.
Often confused with
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