Ground Zero

Try this gym for free with Classpass

Rumble, Ground Zero’s popular class, puts a spin on the traditional boxing class by mixing it up with high-tempo music while hitting all the major muscle groups in its three different class types: Upper Body, Lower Body and Full Body.

Other classes, which include the equally popular Ride (spinning) and newly launched Resistance (strength-building) are held at its second, larger outlet at Cross Street Exchange.