 In 2012 , Merseyside Skeptics Society investigated claims that the Shuzi Qi sports wristbands – bands supposed to improve athletic performance similar to Power Balance bands – had any effect . These bands were promoted in marketing materials as containing a computer chip programmed to " resonate with blood cells ' natural frequencies " , improving circulation by causing them to " <unk> " , and were claimed to " bring your whole being into a state of balance where ... your endurance levels are increased . " The study cited by Shuzi UK used a technique called live blood cell analysis which has been discredited , and Merseyside Skeptics Society characterized the claims as " nonsensical techno @-@ babble " . 
