Which term describes a system that records and provides feedback about physiological states such as muscle tension?

• A. Neurofeedback
• B. Biofeedback
• C. Cardiofeedback
• D. Hydration feedback

Answer: (B)

Biofeedback describes a system that records physiological signals and provides real-time feedback to help a person learn to regulate those states. When it comes to muscle tension, sensors (often EMG) measure how tense a muscle is and share that information back to you, so you can practice relaxing techniques and see how your muscles respond. Over time, this feedback helps people gain voluntary control over automatic processes like tension, stress responses, or arousal, improving relaxation, performance, or pain management.

Other terms focus on different areas: neurofeedback targets brain activity, cardiofeedback focuses on heart-related measures, and hydration feedback isn’t a standard term in this context.