Barre is a form of physical exercise, usually conducted in group classes
in gyms or specialty studios. It is distinguished from other group
fitness activities by its use of the ballet barre and its incorporation
of movements derived from ballet.
These classical dance movements and positions are combined with those
drawn from yoga and pilates, and other equipment is sometimes used in
addition to the barre, such as resistance bands, yoga straps, exercise
balls, and hand weights. Barre classes typically focus on small, pulsing
movements with emphasis on form, alignment and core engagement.
Participants hold their bodies still while contracting specific,
targeted sets of muscles in isometric exercises. Repetitions tend to be
high, range-of-motion small, and weights, when used, light (1 to 1.5kg
or 2 to 3 pounds). Barre classes focus on the lower body and core,
developing strength and flexibility from the ankles up though the
calves, knees, thighs, glutes and abdominals.
Holding muscles in contraction for extended periods frequently leads to
them shaking as they fatigue. This is particularly true of thighs, as
the quadriceps tire. Participants wear activewear similar to that worn
in yoga classes, and do the exercises either in bare feet or in socks.
Some specialized socks ("grip socks") include non-slip features to
increase traction.