An apparel
system integrates a
physiology-sensing inner sleeve within conventional garments to conceal hardware while maintaining natural arm mobility. A sensing sleeve with a sensing armhole opening is secured at a garment armhole region with substantially corresponding circumferences and may be sewn, bonded, or removably coupled. A sensor
assembly comprising a sensor panel and / or
textile electrodes contacts the wearer's
skin to acquire physiological signals, such as
photoplethysmogram, electrocardiogram (single- or multi-channel), and ballistocardiogram data, which are delivered to a computing device via conductive fibers. A
conductive textile interconnect routed through a yoke, shoulder seam, collar, side seam, or body panel couples the sensing sleeve to a complementary sleeve on the opposite arm.
Assembly methods include
coupling sleeves at their armhole openings, attaching the sleeve unit to a garment body, and integrating the sensor
assembly and interconnect for use across a variety of garments.