PSG findings prior to NMES and after two months of therapy in 13 patients.

Note: AHI = apnea/hypopnea index; REM = rapid eye movement; PLM = periodic limb movements; N1 = sleep stage 1; N2 = sleep stage 2; N3 = sleep stage 3; SaO2 = oxyhemoglobin saturation * p ≤ 0.05. PSG findings prior to NMES and after two months of therapy in 13 patients.