Let Lauren Eirk, Resist-A-Ball® Master Instructor, guide you through an all new workout blending classic hatha yoga postures with the Resist-A-Ball®. We have found that the Resist-A-Ball® actually makes hatha yoga more accessible to a wider range of body types and fitness levels. This unique tool can allow positions to become easier or more challenging depending upon the postures. “Yoga with Resist-A-Ball” will leave you feeling stress-free and relaxed as you strengthen and stretch your muscles in this mind-body workout. 43 Minutes.