The fitted curve is given by: V F ( θ ) = 1.28 × 10 − 5 θ 2 + 2.35 × 10 − 3 θ + 6.62 × 10 − 3 Similarly, the male participant’s calibration curve is plotted in dashed red, described by: V M ( θ ) = − 6.41 × 10 − 6 θ 2 + 2.16 × 10 − 3 θ + 2.45 × 10 − 2 Both curves reveal an increasing trend in RMS voltage with wrist angle, though the female profile demonstrates a steeper response, indicating greater voltage sensitivity across the range of motion.
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A Wrist Brace with Integrated Piezoelectric Sensors for Real-Time Biomechanical Monitoring in Weightlifting.
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