IMMEDIATE EFFECTS OF HIGH VELOCITY LOW AMPLITUDE TECHNIQUE ON CARDIOVASCULAR RESPONSES OF SUBJECTS WITH CERVICAL DYSFUNCTION: RANDOMIZED CROSSOVER TRIAL

Neural structures of cardiac sympathetic and parasympathetic conduction emerge from the segments of the cervicothoracic spine. The application of high-velocity, low-amplitude (HVLA) techniques at this segment can generate responses in heart rate variability1,2, but it is not known whether these responses are sufficient to modify systolic blood pressure and arterial blood flow velocity in subjects with C7-T1 dysfunction.