Ask Greg: Issue 101
Greg Everett

Rob Asks: Recently at our local crossfit box, we were practicing the push press. Our trainer politely corrected our flaws and then we did a 7x3 at a fixed weight. One of his pet peeves was that people’s heels came off of the ground as they generated the hip extension. Looking at your poster (hanging in my garage gym) and then watching your demo video clearly shows the lifters heels lifting as they generate power. Which is correct? Heels down, heels up, or doesn't it matter? My own bias is that in order to generate the power, the heels will naturally raise due to muscles of the lower leg crossing both the ankle joint and knee joint, thus in order to lockout the knee the heel will raise. Looking forward to your insight.

Greg Says:
I believe flat heels is what CrossFit is currently teaching in their certifications. In my opinion, flat heels throughout the lift is a problem in that it either forces the athlete to discontinue the drive against the ground prematurely in order to prevent the heels from rising, or it’s indicative of the athlete failing to drive forcefully enough or to continue the drive long enough.

The ankles naturally extend as part of an effort to push forcefully into knee extension against the ground. This is most easily illustrated by a vertical jump: everyone will extend the ankles naturally when trying to elevate themselves maximally. Force an athlete to not extend the ankles, and you can see the limiting effect very clearly (i.e., they will not be able to jump much at all). This is the same thing that occurs with a snatch or clean extension—because part of the explosive effort to lift the bar is a push against the ground with the legs, the ankles will extend naturally unless the athlete is intentionally forcing them to stay flat or has adopted a completely hip-centric lifting style (which has become somewhat fashionable lately on the internet).

Interestingly enough, even if an athlete snatches and cleans with reduced leg drive in the finish and an overwhelming reliance on the hips, this is not possible with the push press or jerk, as the upward drive of the bar is accomplished with knee extension, not hip extension. I have seen and heard some CrossFit trainers attempting to turn the dip and drive of the push press and jerk into a hip movement, even going as far as instructing clients to dip by pushing the hips back somewhat. A quick look at some video of any reasonably high-level competitive weightlifter should make it abundantly clear that this is completely contrary to what actually works. One of the most important instructions coaches ever give to new lifters is to dip and drive completely vertically, flexing and extending at the knees only.

That being said, just like in the snatch and clean, how much the heels rise in the push press or jerk will vary among athletes. It will invariably be less in the push press and jerk than the snatch for a given athlete. The degree of extension is not a concern, but again, if the heel remains perfectly flat, it indicates that the athlete has not put as much upward force into the bar with the legs as possible, and consequently, it’s a poorly executed push press. I tell athletes to think of the push press as a leg exercise rather than an upper body exercise. This doesn’t mean it doesn’t involve the upper body—the push press is a great upper body strengthener—but the intention is to ensure the athlete is focused on perfect technical execution of the dip and drive and maximal force generation in the drive.

You can read a bit more about it in this article.

Michelle Asks: What loading parameters would you use for a weightlifter who wants to get stronger and faster in the lifts but also needs to gain weight? Would their training be any different? Or is how they eat the only thing changed?

Greg Says: It depends somewhat on the lifter. Athletes respond differently in terms of hypertrophy—some will grow best with higher volume and higher rep sets, and some will grow better with lower volume and more rest. Nutrition and recovery are critical of course—trying to get bigger with inadequate nutrition is like trying to build an addition onto your house with no new materials.

I’m definitely a proponent of increased protein intake generally along with additional high glycemic index carbohydrate post workout to encourage weight gain. Protein can be as high as 2-3 grams per pound of bodyweight per day. Post-workout carbohydrates should be somewhere in the 50-100 gram range.

With regard to training, you don’t want to stray far from your base weightlifting program—you want to continue training to improve in the snatch and clean & jerk. A simple approach is to add in some bodybuilding work at the end of some or all of your workouts. You can alternate upper body pushing and pulling days, e.g. one day focus on pressing-related exercises such as press, bench press, DB press and bench variations, dips, etc.; another day focus on pulling-related exercises such as pull-ups and chin-ups, row variations, shrug variations, etc. For the legs, doing lunges, split squats, GHRs or even just a few higher-rep sets of squats after your primary squat sets should work.

I find that variety with such accessory work helps—for example, change what exercises you’re doing each workout but keep track of what you’ve done so the next time you return to that exercise and set and rep scheme, you can try to improve on it. Another method is sticking with the same exercises for 3-4 weeks before switching, but each session trying to perform more reps, more sets or use more weight. In any case, make some kind of change each workout.

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