In April 2017, the American Journal of Medicine (AJM) published a study on the effects of spin class causing Rhabdomyolysis, or Rhabdo for short, which is a rare condition brought on by intense or extreme workouts. The AJM stated that the “high-intensity exercise associated with spin class comes with significant risks to newcomers.” If a newcomer exerts themselves too hard, they could end up in the emergency room. What you need to know; Rhabdomyolysis is the breakdown of muscle that is released into the bloodstream caused by severe exertion or over exertion. Symptoms include dark or brown urine, muscle soreness increasing over time, dehydration, and nausea. When Rhabdo is untreated, it can lead to kidney failure. What can you do? Newcomers aren’t always aware of how intense workouts can be. Staff should remind participants to go at their own pace and drink plenty of fluids. Staff can also keep an eye on first-time participants. Ultimately, our goal is to create a positive, welcoming environment where participants are encouraged to challenge themselves at a level appropriate for themselves. While it’s not possible for staff to monitor the health of every participant in detail, it’s important to make sure that they are aware of Rhabdo and its symptoms. If participants complain of increasing muscle pain and swelling over time, or brownish urine, advise them to seek medical attention immediately.