Introduction To Yoga by Yoga Zone. ''Go at your own pace, don't strain!'' Alan Finger reminds viewers in the introduction to this Yoga Zone workout. They're words of wisdom for anyone who's ever tried (and failed) to emulate the moves of some perfect-looking human pretzel on what purports to be a ''beginners'' videotape. In contrast, Finger's gentle, refreshingly detailed Introduction to Yoga begins with basic breathing techniques and moves on to some of the more fundamental poses in any practice including lunges, twists, cobra, dog, triangle, and even a corpse pose tutorial that comes complete with guided relaxation. (Later tapes in this series build on the asanas taught here, adding more advanced variations and positions.) Two instructors demonstrate different versions of each pose, one for more flexible advanced students and one for less flexible beginners. We even get to see one student topple out of stork pose! Calm, thorough, absolutely unrushed, this is a great tape for those who've never taken a yoga class in their lives. Even experienced students, however, may find that the relaxed pace helps them reach a deeper level of understanding of how body, mind, and breath can work together. Fittingly, the credits roll over Finger and his fellow instructors demonstrating advanced positions of impressive strength and beauty; like the tape itself, it's a perfect introduction to the continuing rewards of yoga practice.