In the realm of fitness, we often focus on the "lifting" or concentric phase of an exercise – the bicep curling the weight up, the quadriceps straightening the leg during a squat.
So, what exactly is eccentric exercise? Simply put, it's the phase of a movement where your muscles are actively resisting a load while they lengthen. Think of slowly lowering a heavy dumbbell after a bicep curl, controlling the descent of your body during a push-up, or the downward motion of your legs during a squat.
Why is this lengthening phase so important? Eccentric contractions generate more force than concentric or isometric (static holding) contractions.
Secondly, eccentric training plays a crucial role in strength development. By overloading the muscles during the lengthening phase, you can push past plateaus and build strength that translates to improved performance in both the concentric and isometric phases of movements. This is particularly beneficial for athletes looking to increase power and explosiveness.
Furthermore, eccentric exercise is vital for injury prevention and rehabilitation.
However, should you be focusing solely on eccentric exercises all the time? The answer is a resounding no. A well-rounded fitness program incorporates all three types of muscle contractions – concentric, eccentric, and isometric – to maximize overall strength, power, and functional movement. Focusing exclusively on eccentric training can lead to increased muscle soreness and potentially a higher risk of injury if not implemented carefully.
So, how can you effectively incorporate eccentric exercise for best use? Quite easily. Begin by emphasizing the negative. During your regular strength training, consciously slow down the lowering portion of the exercise. Aim for a controlled descent that is 2-3 times longer than the lifting phase. For example, if you curl a dumbbell up in one second, try lowering it down over three seconds.
Next, overload the eccentric phrase. Use proper spotting or specialized equipment so you can strategically overload the eccentric portion of an exercise.
Integrate specific exercises since certain exercises inherently emphasize the eccentric phase. Examples include Nordic hamstring curls, plyometric landings (focusing on the controlled absorption of impact), and resisted band stretches. Remember to progress gradually since these exercises produce higher amounts of force which leads to a higher potential for muscle damage, introduce eccentric training gradually.
Lastly, always listen to your body. Note that eccentric training can lead to more delayed onset muscle soreness (DOMS). Ensure adequate rest and recovery between sessions to allow your muscles to repair and rebuild. Remember, eccentric exercise is a powerful tool that deserves a prominent place in your fitness routine. By understanding its benefits and implementing it strategically, you can unlock greater strength gains, promote muscle growth, enhance injury resilience, and ultimately elevate your overall fitness performance.