Eccentric Training: The forgotten variable in sport performance training
Training plans are written with the intent to progress athletes to the top level of performance. Coaches take time to write out detailed programs of different exercises, reps, sets, rest intervals, and manipulate all different types of variables to elicit a training response we feel is beneficial for the athlete. We also look at each sport or event as a whole and break down every part to make sure we have hit every possible avenue we can control in training. Where some coaches or programs are lacking is an essential part of most if not all sports: eccentric specific training. Eccentrics are a type of muscle contraction, in which the muscle increases tension as it lengthens. This is in contrast to a concentric contraction where the muscle shortens while producing tension. Concentric training is often the focal point of most training programs. For proof, just look at the testing in a typical strength and conditioning program. They are almost always all tests of concentric contraction strength. I use all the same tests most coaches use, but just because the test is a concentric movement, we should not forget about the very important eccentric component that is also present. I like to use the back squat as an example of how under appreciated the eccentric component is. When we test athletes we focus so much on the ascent of the squat. However, if we focus solely on ascending, we have missed out on half the movement, the eccentric portion. Eccentric contractions are considerably stronger than concentric contractions (Higbie, Cureton, Warren, and Prior 2173-2181) so during the eccentric component of concentric movements we are not maximizing the training stimulus for eccentric contractions like we should. To get [...]


