Exploring multiple sets of the Nordic hamstring curl exercise, Marshall et al. (2015) noted that a single set of 5 repetitions led to substantial reductions in peak
eccentric knee flexion moments during the exercise, with even further reductions in subsequent sets, implying that performing the Nordic hamstring curl prior to practice or other exercise might not be advisable.
Not exact matches
In addition, it's superior to traditional leg exercises because of the greater emphasis on the
eccentric component of
knee flexion and its strong carryover to the deadlift and squat.
However, Funato et al. (2008) compared the isokinetic concentric and
eccentric knee extension and
flexion torques between elite senior and college Olympic weightlifters.
In agreement, Reid et al. (2011) compared
eccentric plantar
flexion with the
knee fully extended and during a flexed position and reported superior gastrocnemius muscle activity during plantar
flexion with full
knee extension and no difference in soleus muscle activity.
It is suggested that this works due to the ability of the exercise to increase the peak
eccentric force of the hamstrings at shallower angles of
knee flexion (the
knee is more extended) vs. a leg curl which puts a premium on concentric force when the
knee is in full
flexion.
Unlike sprinting, this
eccentric strength is likely necessary for the hip extensors and
knee extensors, as the COD maneuver usually involves combined hip
flexion and
knee flexion.
Hamstrings energy absorption can be enhanced by
eccentric - only or accentuated
eccentric training for
knee flexion (flywheel leg curl or Nordic curl) or hip extension (single - leg back extension).