For signal transmission and sensing in stretchable structures for human motion monitoring or proprioception of soft robots, textiles with conductive yarns are a promising option. Silver-plated yarns are available in a wide range of base materials, yarn counts and twists. In this work, the relation between these textile parameters and the yarn’s resistance-strain response is analysed. Therefore, tensile tests with synchronous resistance measurements are performed. Finally, the application of silver-plated yarns for position monitoring of human joints or soft robotic actuators is experimentally evaluated and discussed.