A Bar Method Instructor Explains Why Your Thighs Can't Stop Shaking in Class

Anyone who has ever taken a barre class knows that one of the defining characteristics of the exercise is muscle shaking, particularly in the legs. Whether you’re shaking or your neighbor is shaking, you’ll undoubtedly notice that borderline-violent trembling that happens in the thighs and calves. So what gives? What’s going on down there? Related…