part of part of skeletal muscle contraction regulation of skeletal muscle contraction by neural stimulation via neuromuscular junction regulation of excitatory postsynaptic membrane potential involved in skeletal muscle contraction GO:0014853 Any process, involved in skeletal muscle contraction, that modulates the establishment or extent of the excitatory postsynaptic potential (EPSP). Excitatory postsynaptic potential (EPSP) is a temporary increase in postsynaptic potential due to the flow of positively charged ions into the postsynaptic cell. The flow of ions that causes an EPSP is an excitatory postsynaptic current (EPSC) and makes it easier for the neuron to fire an action potential. regulation of excitatory post-synaptic membrane potential involved in skeletal muscle contraction modulation of excitatory postsynaptic potential