 LTF, which is synonymous to long-term potentiation, occurs when there are long-term increases in synaptic strength due to synaptic plasticity.In the case of intermittent hypoxia, these increases in synaptic strength result in increased motor output.Reduced partial pressures of oxygen in the arteries due to intermittent hypoxia are sensed by and stimulate the carotid body, a chemoafferent receptor.