A laboratory experiment was conducted to determine the maximum acceptable frequency
(MAF) for a simulated sheet metal drilling task at different applied forces and angles of wrist
flexion using the psychophysical approach. Fifteen healthy females served as subjects.
Results showed that the MAF was significantly reduced as required drilling force and angle
of wrist flexion increased. Some physiological responses (heart rate, blood pressure, muscle
EMG) and rating of perceived exertion (RPE) supported the results. It was concluded that …