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As a performance guy, I absolutely hate the ‘traction control’ button that they put in a number of vehicles today. If you aren't aware of what this button does, it operates by detuning the engine and, in some cases, the transmission. By retarding the engine timing to reduce its output and slowing the shift patterns, it effectively improves the traction but really no more than if you purposely stepped on the gas pedal a little softer and with better control. With less power, the detuned powertrain has less chance of losing control on an unstable surface and causing you to crash and injure yourself.Your body has the exact same mechanisms in place. When you lack stability, your body detunes its reaction to prevent you from injuring yourself. This is the primary reason why training with a Bosu ball or squatting in squishy tennis shoes is counterproductive. With a detuned body, you simply can’t work as hard as you want to or fire and engage your muscles properly. It's also the reason why my coaching cues help people realize immediate improvements in their lifts when implemented properly.If you don’t have a properly stabilized core with proper intra-abdominal pressurization (IAP), this down-regulation is in place. Your traction control button is on. Another button is proper joint centration. If your positioning or tight muscles are pulling the joint to one side of the socket, it will down-regulate your central nervous system firing as well. In practice, this looks like a movement pattern-based, warm-up drill. I have several examples on my YouTube channel and further examples will be covered in depth in the  Duffin Movement Series (DMS).If you're training squats, you would do some movements that require transferring power through the hip joint with a stabilized core. You would do these with proper IAP as a warm...

 I have recently decided to exit my career of 18 years advancing from engineering to executive level leadership the last 8 years.  This move has been in the works a long time but its taken a lot of work to be prepared for the transition. It is a scary move leaving the comfort of a career I have excelled at and am known for my success. However I’ve reached a point in my life that I need to follow my passion and my dreams full time. I now have the opportunity to spend more time collaborating, learning, distilling, and sharing that knowledge.My goal is to add value while continuously improving my relationship with the Strength and Conditioning Community by providing proprietary tools and knowledge designed to optimize physical and psychological human potential.I am excited about that and making this change is worthy of an epic party to celebrate.Of course my idea of a party is different than what most people would imagine. So before engaging in beer, booze, and food I’m going to push myself to my physical and mental limits while attempting to set records.I’m going to be doing a 500lb squat for reps challenge. If I hit 19 reps in 60 seconds it will break the Guinness World record for best squat in a minute. If I hit 24 reps it beats an unlisted record form the 80’s when Tom Platz and Fred Hatfield went head to head for reps with 500lbs.This will be done walked out and with only knee sleeves and belt.Here is the link and embedded page for the live stream event!!! Please share this post around!May 6th @ 3:30 pm PST https://youtu.be/uONcEvbIwfI  https://youtu.be/uONcEvbIwfIIn the interim here is a video to get you pumped up about the event.https://youtu.be/yZIq1tFIKUg...

The Macebell or Gada is a classical training tool dating back centuries.  Its original use was in the wrestling for fighting cultures of ancient Persia and India.  My first experience using one was about 8 years ago when I attempted to incorporate it for shoulder development and conditioning. As a competitive powerlifter I quickly abandoned its use finding that combined with my powerlifting training it aggravated my wrist, elbows, and shoulders.However 2 years ago I decided to make another run at using the macebell again.  I had been making tremendous gains in shoulder health and mobility with my progression into Dynamic Neuromuscular Stabilization (DNS) and some associated kettlebell work.  I decided to try the swing again but focus on some refinement in the movement based on the DNS methodologies.  The goal was to simply realize some training efficiency as the swing was a very active warmup.  If I could accomplish my rehab, prehab, and warmup all at the same time I would have more time to focus on my actual training.With the new approach to the swing my shoulder pain that I had been experiencing daily for the last 8 years disappeared after the first 30 days.  This is pain that had kept me from sleeping, interfered with my training, and I was only able to manage in the short term with mobilizing and re-seating drills.  Gone!  I couldn’t believe the change.  Being surrounded by powerlifters and strongman I found several other test subjects similar to myself and quickly found that the same thing happened. That was when I decided to develop the tool into what we now are marketing to others as the ShouldeRök™.  For further details on the value of the ShouldeRök™ and its impact on eliminating issues caused by open chain barbell movements today done with an...

In December of 2012 I tore my right adductor in a meet.  I had actually had some minor tearing early in the year and had been managing it to keep training but with a 782 competition squat it let go on me.https://www.youtube.com/watch?v=YoEJMEFJAYI After rehabbing the area I determined a need to reduce my injury risk.  With squatting wide and pulling sumo it simply puts a lot of strain on this area that is sometimes slow to recover.  It is also a faily common injury point with lifters.One of the ways I have reduced this risk is with ensuring proper recruitment patterns are firing before this heavy eccentric load.  This is done with a specific warmup routine and test-retest methodology before jumping under squats.  I reviewed this warmup routine on Breaking Muscle.That write up only covered that specific warmup and also skipped the hip-airplane that I often employ as part of it.In this video piece I go into depth on the hip-aiprlane that is used before I squat and pull but also passive compression and some targeted volume work.  The passive compression can make an instantaneous improvement if you have some issues in this area and also seems to improve recovery as well as reduce injury risk.  I employ passive compression in training on pretty much every heavy set for this reason.  A hammy band or a compression band work great.  In addition to the passive compression it’s great to work in some volume work to stimulate flushing of this low blood flow area.  An example of this is provided in the video as well.This is not the be all and end all of groin health, but just the methods I have employed with success.   It has allowed me to successfully move from that failed squat at the beginning to the standing...

Last weekend I took a trip to Las Vegas and worked with my friend Stan Efferding (Worlds Strongest Bodybuilder) and also Eric Spoto (worlds strongest raw bench presser).  I have been working with Eric Spoto on his rotator cuff surgery rehab plan over the last several months.  Eric has been working with his physical therapist on his rehab plan while I was guiding him on his training in the gym and other recuperative movements that fell within those parameters.   With Eric's progress he had reached a point that we could begin incorporating the ShouldeRok to deal with some of the root issues that could have led to his surgery to begin with.  It was time to build the platform for ongoing strength and shoulder health for his continued dominance in the bench press, prompting this trip.Upon learning that I was coming down I received a text from Stan asking if I could help him dial in some changes to his deadlift.  At least the text was sent to my phone, but I was confused as he was referencing the "mad scientist" for assistance.  Upon arriving at the Iron House gym Stan cleared up that he was indeed talking about me, as you will see in the following video.  Upon reflection the nickname is fitting given my tendency to tinker with and improve everything including my machining, 4 wheeling rigs, gym devices, and human movement.Don't worry the actual coaching videos will follow in coming weeks: "The Mad Scientist of Powerlifting"? Stan Efferding w/Chris Duffin...