In the Biz: Workouts at Barre Strength rely on principles of ballet conditioning
The Saratogian
… workout program is a fusion of isometric exercises and interval training that relies on the principles of ballet conditioning, yoga and pilates. …

Stepping into spring
Seacoastonline.com
This can mean using free weights, machines in a gym, exercise bands or other gadgets, isometric exercises, and/or core activities like Pilates or some forms …