Welcome, Jon!

Jon has been been with us for a little over a month and is making huge improvements on form and strength. 
Keep it up!

Comments

[Mark]

Somebody tell Jon not to let his knees pass his toes on the OHS or any squat for that matter... bad form that will eventually hurt your knees (spoken from experience).

[Erwin]

?

"In a correct back squat, there is essentially one correct place for the knees: slightly out in front of the toes, the exact distance being determined by the anthropometry of the individual, directly in line with the foot so that the femur and the foot are parallel and congruent....Depending on the femur/tibia/trunk dimensions of the trainee, the knee could be anywhere from directly plumb to the toes or three to four inches in front of the toes." -Starting Strength

[Erwin]

And also this study.

Human Performance Laboratories, The University of Memphis, Memphis, Tennessee 38152, USA. afry@memphis.edu

Some recommendations suggest keeping the shank as vertical as possible during the barbell squat, thus keeping the knees from moving past the toes. This study examined joint kinetics occurring when forward displacement of the knees is restricted vs. when such movement is not restricted. Seven weight-trained men (mean +/- SD; age = 27.9 +/- 5.2 years) were videotaped while performing 2 variations of parallel barbell squats (barbell load = body weight). Either the knees were permitted to move anteriorly past the toes (unrestricted) or a wooden barrier prevented the knees from moving anteriorly past the toes (restricted). Differences resulted between static knee and hip torques for both types of squat as well as when both squat variations were compared with each other (p < 0.05). For the unrestricted squat, knee torque (N.m; mean +/- SD) = 150.1 +/- 50.8 and hip torque = 28.2 +/- 65.0. For the restricted squat, knee torque = 117.3 +/- 34.2 and hip torque = 302.7 +/- 71.2. Restricted squats also produced more anterior lean of the trunk and shank and a greater internal angle at the knees and ankles. The squat technique used can affect the distribution of forces between the knees and hips and on the kinematic properties of the exercise. PRACTICAL APPLICATIONS: Although restricting forward movement of the knees may minimize stress on the knees, it is likely that forces are inappropriately transferred to the hips and low-back region. Thus, appropriate joint loading during this exercise may require the knees to move slightly past the toes.

I'm not saying Jon's form is perfect though.

[Krista]

Jon is doing a push jerk, not an OHS! He is new and still working on form. Aside from the elbows not getting as locked-out as should be, I think it is not a bad looking jerk. It may be as good as it gets for the elbow lockout, too.