Concurrent increases in maximal vel

Concurrent increases in maximal velocity or RFD
and neural activation have been reported after ballistic
power training (14). Strong theoretical arguments support
the assumption that changes to neural activation patterns
(i.e., lowered motor unit recruitment thresholds, improved
motor unit firing frequency, and possibly synchronization)
and enhanced intermuscular coordination contribute to the
observed performance increases (14,32). However, these
findings were made using isometric, single-joint movements (i.e., ankle dorsiflexion, elbow flexion/extension,
knee extension). Similar results have not been consistently
observed during dynamic, multijoint, sports-specific movements (25,39). This may be because of the distinct lack of
research focus on the neuromuscular factors driving performance improvements in such movements after training.
Furthermore, the extent to which other potential neuromuscular changes (i.e., muscle architecture, technique changes)
contribute to improvements after ballistic power training is
not clearly understood.