I took a sound meter into my Tuesday spin class just to prove the instructor wrong: the number on the screen meant we should have left after fifteen minutes
One cyclist brought a sound meter to their Tuesday spin class and discovered noise levels reaching 98 decibels—far exceeding safety guidelines. Research shows group fitness classes frequently match the volume of subway trains and power lawn mowers, yet participants rarely protect their hearing. Here’s what the data reveals about the gap between instructor motivation and participant safety.