Before revision: They were used in carefully choreographed routines in which the clubs were swung in unison by a group of exercisers, led by an instructor,‌the way it is still practiced in Varzesh-e-Bastani in Iran and similar to 21st-century aerobics or zumba classes.
After revision: They were used in carefully choreographed routines in which the clubs were swung in unison by a group of exercisers, led by an instructor,‌the way it is still practiced in varzesh-e-bastani in Iran and similar to 21st-century aerobics or zumba classes.