Electrical Stimulation:

• 18-32 min of pulsed current,
• stimulation frequency of 80Hz (hertz).
• pulse duration of 200μs (microseconds).
• stimulation intensity fixed near to maximal tolerated.

and

Laser Therapy:

• λ = 810 nm (nanometers)
• continuous wave
• 200 mW (milliwatts) output power
• low-level laser therapy dose of 4-6J (Joules) per point.
• six points at the knee joint.