Ten years ago I never heard the term “posterior chain” now I see it everywhere in both training and rehab literature. What is the posterior chain? Why did it appear out of nowhere? Is it a meaningful term or a term of convenience without real meaning?
In a training manual that I just received produced by a national federation (In a sport plagued by hamstring pulls) there were twelve exercises listed under posterior chain exercises. Last year on a visit to observe a DI football team the strength coach proudly told me how they do six posterior chain exercises as part of each lower extremity training session. Guess what, this year they 
had had more hamstring pulls and other lower extremity catastrophic injuries than any team in their conference. Is there something wrong with this picture? Sure, you bet there is. The prevention has become the cause. Frankly I just do not understand why we keep fooling ourselves, all you have to do is understand function. Rather than focus on the areas of the body (Hamstrings) that are at risk of injury, look how that segment fits into the whole kinetic chain. But it is not usually the hamstrings fault, it is a lack of coordination; other muscles did not do their job.
The term posterior chain has created another problem rather solving a problem. It also has created confusion where and when we need clarity. Let’s get back to a focus on the kinetic chain and the interaction and coordination of the links in the change that result in efficient movement that is essentially a chain reaction. It does not require any fancy machines, no new terminology, just a repetition of basic movements in multiple planes, encompassing multiple joints that emphasize coordination of force production, force reduction and proprioception.
James Marshall
I had never heard of this term until a few years ago. I then saw people training like you said with 3-4 exercises on this in isolation in the gym. Little, if any work was done on running at top speed, running curves or s shapes.
I wonder if it is another example of group think like “core stability” then we start training to improve the test or the artificial construct, rather than the athlete?
Rich Kingston
it’s another example of trying to abbreviate the human body, something that’s extremely complex, and yet so simple at the same time. Train your body for what you want it to do. It used to be called coordination, now it’s functional movement, or movement for function, either way, train and load the patterns you’ll need, which aren’t usually deadlifts or olympic lifts.