You also don't need a PhD in Exercise Physiology to figure out that the energy system that the body calls upon when playing football is the anaerobic energy system. But, here's the "catch" where I feel most coaches go wrong with regards to conditioning for football. (Don't worry; this won't be too technical. Stay with me for a couple more seconds, then we'll get to the fun stuff!) There are two types of anaerobic systems:
#1) The ATP-PC System (Alactic): This system doesn't require or produce oxygen. It's used for quick, explosive activities that last up to 10 seconds.
#2) The Anaerobic Glycolysis System (Lactic): This system doesn't require oxygen either, but it does produce lactic acid. It's used during activities that last between 10 seconds to 1 minute.
Going back to the three most popular football conditioning tests (110's, gassers, 300-yard shuttles); you can see that they fall into the Anaerobic/Lactic System because they take approximately 15 seconds to 1 minute, respectively, to complete.
Why the hell are coaches choosing exercises/tests that take up to 1 minute to complete, when it's a fact that the average football play lasts only about 5 seconds?!? Even an unusually "long" football play will only last 10-11 seconds! Yet, the most popular football conditioning tests measure the efficiency of the athlete's Anaerobic/Lactic system, even though football is an Anaerobic/Alactic sport!!! Strength & conditioning coaches are basically comparing apples to oranges. It's a shame because there's football players every summer who fail their conditioning test during training camp, even though they're actually in "real" football shape!
Here's the deal: I'm calling out all the football strength & conditioning coaches that read this -- I challenge you to start designing all your conditioning/energy system workouts and testing protocols specific to what's actually required during a football game!! Simply put, from this point on, your athletes should be focussing on exercises that require 4-10 seconds of intense activity, followed by 20-40 seconds of rest. Some good examples of exercises that fit into this category are sprints, sprints with changes of direction, resisted sled/prowler sprints, overcoming a resistance (like flipping a tire) then sprinting, jumps into a sprint, reacting to a visual cue, etc. You can get creative with your exercises...you'll see in the video below that I like coupling strongman-type exercises with short, explosive sprints. You'll also want to tweak things according to position. For example, skill position players should be performing "longer" sprints then the lineman, etc. The options are truly endless.
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