During EMG biofeedback training, when the patient’s muscle activity begins to rise, which adjustment best supports progression?

During EMG biofeedback training, when the patient’s muscle activity begins to rise, which adjustment best supports progression?

• A. Start with sensitivity at mid-range and keep it constant
• B. Start with sensitivity high and decrease as activity increases
• C. Start with sensitivity low and steadily increase
• D. Do not adjust sensitivity at all

Answer: (B)

EMG biofeedback uses the feedback gain (sensitivity) to control how readily the system signals the patient about their muscle activation. For progression, you want to challenge the patient as their control improves. Starting with high sensitivity gives quick, clear feedback even with small muscle activations, helping the patient learn the correct activation pattern. As their activity begins to rise and they gain control, lowering the sensitivity increases the demand: the patient must generate more accurate or stronger activation to achieve the same feedback level. This gradual reduction in feedback ease promotes refined motor control and continued progress rather than allowing the task to become too easy or plateau.

EMG biofeedback uses the feedback gain (sensitivity) to control how readily the system signals the patient about their muscle activation. For progression, you want to challenge the patient as their control improves. Starting with high sensitivity gives quick, clear feedback even with small muscle activations, helping the patient learn the correct activation pattern. As their activity begins to rise and they gain control, lowering the sensitivity increases the demand: the patient must generate more accurate or stronger activation to achieve the same feedback level. This gradual reduction in feedback ease promotes refined motor control and continued progress rather than allowing the task to become too easy or plateau.