Get smart –- by wearing more clever fabrics. Body-monitoring duds have been around for a while as an idea, but cost and battery power have been two roadblocks on the path to smarter fabrics. Now, a research group in Europe has made a fabric that can monitor muscular overload and help prevent repetitive stress injury –- the kind that construction workers can get from repeating the same stressful movement for hours. Tiny sensors are weaved into the fabric and send data back to a source. The researchers hope they will be able to adapt the technology for a pregnant woman to wear to monitor her baby’s heartbeat and for a full-body video game controller.