Measurement of Deep Tendon Reflexes Using a Millimeter-Wave Radar

Patellar and triceps deep tendon reflexes are measured using a millimeter-wave frequency-modulated continuous wave radar positioned near each respective limb. The micro-Doppler signatures from the reflex responses are converted into spectrogram images for feature analysis. Motion capture technology is used to verify the radar measurement results. This letter provides substantial proof of concept for using radar to unambiguously measure and quantify deep tendon reflexes in a clinical setting.