Not exact matches
These additional negative repetitions will exhaust
eccentric strength levels
after you achieve concentric muscular failure.
In addition, it is interesting to observe that
after programs of unilateral exercise,
eccentric training produces a greater cross-over of
strength gains from the trained limb to the untrained limb than concentric training (Hortobágyi et al. 1997; Seger et al. 1998; Nickols - Richardson et al. 2007; Kidgell et al. 2015).
Ultimately, what we can say is that since changes in tendon stiffness do not seem to differ between concentric and
eccentric training, that changes in tendon stiffness are probably not responsible for the specificity of
strength gains
after eccentric training.
In addition, the increases in EMG amplitudes
after eccentric training seem to be greater when tested in
eccentric strength tests, which is a promising sign for explaining
eccentric - specific
strength (Hortobágyi et al. 1996).
Gains in
eccentric - specific
strength after eccentric training are probably caused by both peripheral and central factors.
Currently, it is unknown whether
eccentric training affects changes in antagonist co-activation differently from concentric training or standard
strength training, although there is evidence that it can cause reductions (Pensini et al. 2002), as has been reported
after some (mostly high - velocity) conventional
strength training programs.
This means that the
strength gains
after eccentric training are greater when measured in an
eccentric test of
strength, compared to in a concentric test of
strength.
So although there might be small differences in regional hypertrophy between concentric and
eccentric training (because of the differences in the muscle architecture adaptations), it is still unclear whether this phenomenon is responsible for the specificity of
strength gains
after eccentric training.
What this means is that while muscle - tendon stiffness often increases with normal
strength training or with concentric exercise, it does not necessarily increase
after eccentric exercise (Kay et al. 2016).
Even so, the adaptations that produce
eccentric - specific
strength after eccentric training do not appear to be strongly velocity - specific (Alt et al. 2017), and there are indications that athletic populations display smaller differences between maximal involuntary and voluntary
eccentric force, even in unfamiliar movements (Amiridis et al. 1996).
Strength after bouts of
eccentric or concentric actions.
Muscle soreness, swelling, stiffness and
strength loss
after intense
eccentric exercise.
Golden CL, Graves JE, Buchanan P, Dudly G.
Eccentric and Concentric
Strength After Repeated Bouts of Intense Exercise.
In other words,
after a long period of time carrying out
eccentric strength training, you tend to increase
eccentric strength by more than concentric
strength.
Similarly,
after a long period of time carrying out concentric
strength training, you tend to increase concentric
strength by more than
eccentric strength.
So
eccentric training is helpful for preventing muscle strains, but this may be partly because of various specific changes that happen
after eccentric training, including specific gains in
eccentric strength (relative to isometric or concentric
strength) and not just because of overall
strength gains.