TrainingResistance training methods
Accentuated Eccentric Training: Emphasizing the Lowering Phase
Quick Intro
Accentuated eccentric training puts extra emphasis on the lowering phase of a lift. The eccentric phase is the part of a repetition in which the muscle lengthens under load, such as lowering a bar to the chest in a bench press. Training can slow that phase down, add extra load to it, or both. A simple version is the “negative”, where a lifter lowers a weight slowly that they could not lift up.
The Idea in Plain Terms
A muscle can resist more force while lengthening than while shortening. That is why you can lower a weight you could not lift. In practice, eccentric contractions can produce more force than concentric ones, and they do so at a lower energy cost. They also cause more mechanical disruption to muscle fibers, which brings soreness and has been proposed as a growth signal.
Three ways of emphasizing the eccentric phase are common:
- Slow eccentrics. The lowering takes 3 to 5 seconds. No extra load is needed.
- Supramaximal eccentrics. The lowering uses a load heavier than the lifter’s one-repetition maximum for the lift, which is the heaviest weight they could lift once. A spotter, machine or special equipment returns the weight to the start.
- Eccentric-only training. Sets are lowered only, which suits a very heavy load.
Eccentrics are also used in rehabilitation for tendons, where slow, loaded lowering is a standard approach for some tendon problems.
A Worked Example
An example using a chin-up bar or a pulldown machine:
| Step | Detail |
|---|---|
| Starting position | Jump or step to the top position, chin above the bar |
| Lowering | Lower for 5 seconds under control |
| Return | Step back up to the top |
| Dose | 3 sets of 4 to 5 lowerings |
For a heavy bench press, a spotter might help return a load of about 110 percent of maximum to the top after each controlled lowering of 3 seconds.
What the Research Shows
A 2009 systematic review and meta-analysis by Roig and colleagues pooled 20 randomized trials and found that eccentric training performed at high intensity produced larger gains in strength than concentric training, and larger increases in muscle size measured by limb girth. They linked the advantage to the higher loads that eccentric contractions allow.
A 2017 review by Schoenfeld and colleagues compared concentric and eccentric actions for muscle growth. It found that both are effective and suggested that a program should include both. This is a useful counterweight to the idea that eccentrics are the key to growth.
Research on supramaximal eccentric loading specifically, with loads above the one-repetition maximum, is thinner. One meta-analysis of five studies examined lower-body strength and noted concerns about injury risk, soreness and the lack of clear benefit over traditional training. A single 10-week trial of 90 versus 120 percent loading in active students measured muscle and hormonal responses but does not settle the question.
Overall, the evidence supports heavy, controlled lowering as a useful part of a program, with less certainty about very heavy supramaximal loads.
Who It Suits
- Experienced lifters whose progress on regular lifts has slowed.
- People working through tendon rehabilitation, under professional guidance.
- Athletes who need to absorb force, such as when landing from a jump.
It is a poor match for beginners, who should learn to lower weights with control first, and for anyone without a spotter or safe equipment for heavy lowering.
How to Use It
- Start with slow eccentrics of 3 to 5 seconds before adding extra load.
- Use safe setups, such as a spotter, a power rack or a machine, for any weight above what you can lift.
- Use fewer sets and reps than usual, because eccentrics cause heavy soreness.
- Introduce them gradually, since the first session often produces strong soreness for several days.
- Place them early in a block, and leave 48 to 72 hours before training the same muscles again.
Common Misunderstandings
It is not about dropping the weight. The point is a controlled lowering.
It is not necessary for growth. The reviews show both phases work.
It is not a light option. The soreness it causes can limit other training.
FAQ
Why does the lowering phase cause more soreness? The muscle produces high force while lengthening, which disrupts fibers more than shortening contractions do.
How slow should the lowering be? Commonly 3 to 5 seconds. Longer is not clearly better.
Are negatives safe? They are safe with spotters or machines. Doing them alone with heavy free weights is risky.
Can I use eccentrics for tendon pain? Clinicians use slow loaded lowering for some tendon problems, so ask a physical therapist before trying it on a sore tendon.
Where This Comes From
Roig M and colleagues, 2009, effects of eccentric versus concentric resistance training on muscle strength and mass: systematic review and meta-analysis (British Journal of Sports Medicine, 43, 556 to 568). Schoenfeld BJ and colleagues, 2017, hypertrophic effects of concentric versus eccentric muscle actions: systematic review and meta-analysis (Journal of Strength and Conditioning Research). A meta-analysis of supramaximal eccentric training and lower-body strength (five studies).
Related to: isometric training, rest-pause training and hypertrophy mechanisms. Exercises include Nordic Hamstring Curl and Pull-up.