This shift of perspective invites a change of approach: instead of charting average firing rates of single neurons, we must infer behaviorally relevant
neural codes from evolving activity patterns across neural populations.
Summary: Recent advances in systems neuroscience have motivated a shift of perspective on
neural code from static single - neuron codes such as tuning functions to codes that are governed by structure and dynamics of population activity.
Since increases in
neural drive at short muscle lengths are likely driven by reductions in motor unit recruitment threshold (Pasquet et al. 2005), while increases in
neural drive at faster velocities and during concentric contractions are primarily caused by increased rate
coding (Pasquet et al. 2006; Harwood et al. 2011; Enoka & Duchateau, 2017), the transfer of
neural drive
from partial exercises using short muscle lengths could be lower than we might expect, although this would probably depend on whether the strength training exercise was performed with a lighter load, and explosively.