Amplitude: refers to the intensity or strength of the current being delivered. The amplitude setting controls the amount of current delivered to the nerves and muscles and can be perceived as gentle tingling to more intense electrical sensations.

Frequency (Channel): measured in Hertz (Hz). It is the number of stimulation pulses delivered per second by one channel.

Frequency (Global): measured in Hertz (Hz). It is the number of stimulation pulses delivered per second by all channels.

Grade 3 rotator cuff tear: more than ½ th thickness of rotator cuff tear (Ellman classification)

Power: force times velocity that the rider is putting on the FES cycle pedals. It is measured in watts (W).

Pulse width: length of time that each electrical pulse is delivered. It is measured in microseconds (μs) or milliseconds (ms).

Watt: rate of energy production.