At the CrossFit Level 1 seminars, three overhead movements are taught together: The press, the push press, and the push jerk. All three take a barbell (or other object) from the shoulders to locked out overhead. The difference is in the use of the hip.
In this Part 3 The Push Jerk, Adrian Bozman explains the basics of performing the push jerk correctly. The difference between the push press and push jerk is the aggressive landing in a partial squat with the arms locked overhead, which allows the hips to do almost all of the work in elevating the barbell. Typically, skilled athletes can use around 70% heavier loads with the push jerk over the strict press.
The video was captured at the CrossFit Level 1 Certification Seminar in Golden, CO on October 24, 2008. Chris Spealler is the demogirl.