I’m hearing something about grp x classes using Strobe light? Really? ADVERTISEMENT 784 viewsJune 15, 2011 0 Patty0 June 15, 2011 0 Comments Are grp x classes using Strobe light? It was in a Les Mills Class……Just wondering if true. 6 Answers ActiveVotedNewestOldest 0 Hardy15 Posted 0 Comments Bad idea! The visual-spatial work in many ways during exercise, especially functional exerecise. The strobe would only disoreient them. You are viewing 1 out of 6 answers, click here to view all answers. Register or Login