Power Yoga: The Total Strength and Flexibility Workout Birch, Beryl Bender Summary Presents a high-energy, high-heat yoga workout. Presents a high-energy, high-heat yoga workout. Based on Astanga, an ancient form of yoga, this book includes a series of vigorous gymnastic stretching, strengthening and breathing positions. It describes 100 positions that should be held for 30-60 seconds each. Perfect for fans of Fitness & Exercise, Health, Family & Lifestyle, Special Features, Popular Medicine. Highlights Easy to enjoy: 288 pages · Paperback By Birch, Beryl Bender Details ISBN: 9781853751905 Author: Birch, Beryl Bender Format: Paperback Pages: 288 Language: English Publication date: 16 July 2002 Condition: New About the authors Birch, Beryl Bender and Beryl Bender Birch More about this book Reviews Based on Astanga, an ancient form of yoga, a guide to a high-energy yoga workout, which combines vigorous gymnastic stretching and strengthening with a variety of breathing positions.