To put it simply, by the time you stop moving downward, your elbows need to be locked, and they need to stay locked until you’ve completed the recovery. If you struggle with either of these issues, i.e., receiving the bar with locked elbows or keeping them locked once you’ve received the bar, then read on, compadre.
While soft elbows can be the result of inadequate strength, poor shoulder flexibility, or incorrect positioning (this is common when the bar is received forward of the shoulder joint), they are often simply the result of bad timing or a poor sense of what locked out elbows feel like when in an overhead position.
With this in mind, try this cue when jerking or snatching: “Lock it before you land it.” In other words, you are going to try to lock the bar out overhead with completely straight elbows before your feet land back on the platform. Lock it before you land it.