When it comes to group workouts, indoor cycling studios in particular also boast a strong following and community.

Also known as spin classes, they involve several riders pedalling in a dimly lit room, guided by music and an instructor's commands.

And these classes can provide “powerful, emotional release”, said spin instructor Valerie Tan, who has herself been moved to tears by the setting.

That's not as uncommon as one might think, she added, citing a fellow instructor who has cultivated a “strong worship” thanks to his ability to deliver motivational speeches among other factors.