Coulter, who received a PhD in anatomy in 1968, and has taught in numerous contexts since then, has also been a student of yoga since the 1970s. Here he conjoins his two areas of expertise. After discussion of basic premises regarding yoga practice focusing attention, becoming aware of breath, moving into and out of postures, responding to pain he discusses movement and posture, breathing, and abdominopelvic exercises, and then explores in detail the various standing, backbending, forward bending, twisting, and inverted postures, as well as relaxation and meditation. In his densely packed explications and descriptions, he variously addresses yoga teachers, yoga students, and medical practitioners; and this leaping about from audience to audience lends a clutter to the presentation. Still, there's valuable information here for readers in all three groups. Annotation c. Book News, Inc., Portland, OR (booknews.com)