In this study, we developed a flexible motion sensor that is able to be pasted to the body skin by embedding a hetero-core optical fiber sensor in a medical tape. The proposed sensitive tape detects the small stretch and bend without temperature compensation by using a simple equipment incorporating a light emitting diode and a photodiode. Firstly, a sensitive tape was tested the sensor performance for stretch and bend. Body joint movements were measured by the sensitive tapes pasted on the body. In addition, nursing movements were monitored by the eight sensitive tapes placed on body joint segments including the arm, shoulder, waist, and thigh. The differences of nursing movements were obtained by the sensitive tapes tracking the small change on the skin. The results showed that the proposed sensitive tape can detect the deformation of the skin only by being pasted on the skin and can measure the body motion without constraint to the body.
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