Neuromuscular Electrical Stimulation and Motor Control

This group will receive the neuromuscular electrical stimulation using interferential mode (6000 Hz, beat frequency 20-50 Hz, scanning effect) on bilateral lumbar multifidus muscles. The intensity will be set at the subject's maximum tolerance. Stimulation will be set at 10 seconds on and 60 seconds off to minimize muscle fatigue. The total stimulation time is 15 minutes. After that, this group will receive 30 minutes motor control training. This motor control training will focus on the control of the lumbar multifidus muscle in various functional tasks. It is believed to restore the motor units in individuals with arthrogenic muscle inhibition. This motor control training will take approximately 30 minutes. This group will receive intervention twice a week for 8 weeks.

This group will the neuromuscular electrical stimulation without turning the electrical current for 15 minutes. After that, this group will receive 30 minutes motor control training. This motor control training will focus on the control of the lumbar multifidus muscle in various functional tasks. This motor control training will take approximately 30 minutes. This group will receive intervention twice a week for 8 weeks.