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Here's a list of recommended strength and conditioning reading to kick off you week.
The Prevalence of Radiographic Hip Abnormalities in Elite Soccer Players - This recently published study in the AJSM shows us just how common hip issues are in soccer players - even if they're asymptomatic. You can apply this to hockey players as well - and possibly on an even more pronounced level. This goes hand-in-hand with some of my writings in the past about knees, shoulders, and lower backs. Just because someone is asymptomatic does not mean that they are "healthy" - and this is why assessment and an understanding of population-specific norms are so important!
Band-Assisted 1-arm Push-ups: A Better Alternative - My buddy Shon Grosse outlines a good progression for those looking to build up to a one-arm push-up.
Causes International - This isn't so much fitness-related, but I think it's a great organization worth checking out. The folks at Causes International provide an opportunity for you to help raise money for your favorite charities by donating your used electronics (a process known as upcycling). Most people have old gadgets kicking around the house, and these can easily be upcycled to benefit others and protect the environment.
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| Males and Females: Similar, but Different
During my weekly Pubmed scan, I came across this study the other day:
The Core and Hip in Soccer Athletes Compared by Gender
It seemed like a good fit for this week's newsletter for a few reasons.
First, we always hear that men and women should train exactly the same. While there are certainly a lot of similarities between how I personally approach the training of men and women, as I noted in a previous newsletter, there are also a lot of important considerations specific to females. This study highlights on such consideration: increased hip internal rotation as compared with their male counterparts.
Ask anyone who has ever trained male soccer or hockey players or powerlifters, and if they know anything about assessment, they'll tell you that a hip internal rotation deficit (HIRD) is a huge problem. It can lead to knee, hip, or lower back pain and have a markedly negative impact on movement. Improving length of the hip external rotators - with flexibility drills like the knee-to-knee stretch - is of paramount importance.
Well, those exact same drills would actually increase the typical female's injury risk. Excessive hip internal rotation and knee valgus are just a few of the many reasons (also including the hip abductor and core control weaknesses outlined in this study) that most females have more anterior cruciate ligament injuries than males.
The lesson could end there - but it won't. Why?
I had a female distance runner in for an evaluation on Saturday, and she had very poor hip internal rotation. A flexibility drill that would be inappropriate for the female "masses" is a great fit for her. Cases like this make it very clear that it's important to assess and not just assume.
This is why I'm so excited about the impending release of our new product, which outlines a series of self-assessments and corrective exercises one can use to pinpoint these issues and address them in a targeted fashion. Keep an eye out for an announcement on its release in the weeks to come.
Feedback on Maximum Strength
"This program took me to the next level of performance with my lifting. After using a variety of programs focusing on fat-loss and hypertrophy and having limited results from them it was great to see such solid increases in strength and physique changes from the program. In addition, the program focus on dynamic flexibility and foam rolling has resulted in an injury free training cycle and major flexibility and posture improvements. I would highly recommend this program and book to anyone wanting to make real progress with strength, performance and body composition."
Dan Hibbert - Calgary, Alberta
Increased body weight by 14 pounds, broad jump by seven inches, box squat by 80 pounds, bench press by 30 pounds, deadlift by 70 pounds, and 3-rep max chin-up by 27.5 pounds.
Check out Maximum Strength for yourself!
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Have a great week!
EC |
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| What the experts are saying about The Truth About Unstable Surface Training…
“Unstable surface training is many times misunderstood and misinterpeted in both the physical therapy and athletic performance fields. The Truth About Unstable Surface Training e-book greatly clarifies where unstable surface training strategically fits into an overall program of injury prevention, warm-up/activation, and increasing whole body strength. If you are a physical therapist, athletic trainer, or strength training professional, The Truth About Unstable Surface Training gives you a massive amount of evidence-based ammunition for your treatment stockpile.”
Shon Grosse PT, ATC, CSCS
Comprehensive Physical Therapy
Colmar, PA
Click here for more information on The Truth About Unstable Surface Training.
Subscriber-Only Q&A
Q: I have a question about your 22 More Random Thoughts article from October of 2008 on T-Nation. In the stretch for the hips found above #10, I can't tell is that athlete bridging or are the hips on the ground. Also, can you please explain exactly what is stretched and how a little bit about how it corrects out-toeing of the feet?
A: Sure, no problem. Here's the lying knee-to-knee stretch, for those readers who missed the original article:
First off, it's a stretch for the hip external rotators, and the athlete is not bridging up. However, it's also useful to do the stretch in a more hips-extended position, as a small percentage of athletes will feel it more in that position. To perform this stretch, we'll do the exact same position, but have the athlete set up atop a stability ball (which keeps the femurs in a more extended position).
Poor hip internal rotation range-of-motion is something you'll see quite frequently in soccer players, hockey players, and powerlifters, as all spend a considerable amount of time in hip external rotation. Likewise, I monitor this closely with all my baseball pitchers, as front leg hip internal rotation deficit is a huge problem for pitchers. When the front hip opens up too soon because of these muscular restrictions, the arm lags behind the body (out of the scapular plane). As such, it isn't uncommon for pitchers with elbow and/or shoulder pain to present with a significant hip internal rotation deficit.
There is also a considerable amount of research to suggest that hip rotation deficits - and particularly, hip internal rotation deficits - are highly correlated with low back pain. There was a great guest blog post at Mike Reinold's blog recently that highlights all this research; you can check it out HERE. My personal experience with hundreds of people who have come my way with back pain overwhelmingly supports this "theory" (if you can even call it that). It's my firm belief that this is one of the primary reasons Mike Robertson and I have gotten so much great feedback on our Magnificent Mobility DVD from folks who have seen a reduction (or altogether elmination) in back pain. Teach folks to move at the hips (particularly in rotation) instead of the lumbar spine, and whatever's going on in their low backs calms down.
Our goal is a minimum of 40 degrees of hip internal rotation. This is measured in the seated position (hips flexed to 90 degrees).
In addition to the classes of athletes I mentioned earlier, we also need to watch out for hip internal rotation deficit (HIRD) in the general population because of what happens further down the kinetic chain. We all know that overpronation at the subtalar join is a big problem for a lot of folks. This can occur because of a collection of factors, from poor footwear (too much heel lift), to muscular weakness (more on this in a second), to mobility deficits (particularly at the ankle), to congenital factors (flat feet). To understand how pronation affects the hip external rotators, you'll need to listen to a brief synopsis of subtalar joint function...
During the gait cycle, the subtalar joint pronates, to aid in deceleration. Basically, the foot flattens out to give us a bigger base of support from which to cushion impact, and from there, we switch back over to supination to get a rigid foot from which to propel. The picture below shows what our foot looks like when we have too much pronation.
Here's where our hip gets involved. Physical therapist John Pallof once called the subtalar joint a "torque converter," and it really stuck with me. What that means is that while the subtalar joint allows motion in three planes for pronation/supination, it converts this motion into transverse plan motion where it interacts with the tibia. And, as you can imagine based on the picture above, when you pronate, you increase tibial internal rotation. This, in turn, increased femoral internal rotation. Taken all together, we realize that increasing pronation means that there is more tibial and femoral internal rotation to decelerate with each step, stride, or jump landing.
The hip external rotators are strong muscles with a big cross sectional area, so they can take on this burden. However, over time, they can get balled up from overuse. As a result, the hip will sit in a more externally rotated position all the time - and the feet simply come along for the ride. That said, as I wrote HERE, it isn't the only cause of this foot position, so be sure to assess thoroughly and individualize your recommendations.
Also, a quick side note, be careful using this stretch with individuals who have previously experienced medial knee injuries, as the valgus stress can be a bit too much for some folks.
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CP Athlete Featured at Precision Nutrition
I encourage you to check out this Precision Nutrition Athlete Profile on Cressey Performance athlete and Oakland A's minor league pitcher Shawn Haviland. Shawn completely changed his body this off-season and had a nice velocity jump from 87-89 to 91-93mph - and he's off to a good start for the Kane County Cougars. A lot of this can be attributed to him making huge strides with improving his nutrition.
Have a great week!
EC |
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