The video itself consists of four self-contained sections based on Hatha yoga techniques that can be done individually if you're short on time or all at once for a longer workout. First up is the 10-minute "tone-up" which you should aim to do daily. Once you get used to this try and do the second 10-minute "power workout" for a more advanced stretch. Section 3 is "power toning" which places particular emphasis on arms, bums, tums and thighs. And finally, section 4 brings you "power stretching" aimed at relieving tension.

At the start of each exercise Barbara outlines the muscles that each exercise is working and the benefits you will receive--and her glowing good health should be evidence enough for even the most sceptical viewer.

All four sections show versions of each exercise for both the beginner and those with previous experience. But although aimed at all levels, Power of Yoga will be of particular interest to beginners. No previous knowledge is assumed and with the easy-to-follow sequences and strong emphasis on working at your own pace, Barbara's soothing voice will encourage even the most hesitant beginner. --Anna Freeman