On the opposite end of the high-profile scale stands low-key Ed Taaffe in this nofrills production best suited for beginners who don't want to feel like they're trapped in a disco. There is no music, no bouncing or jouncing; just unpushy Ed, a YMCA-trained instructor, who ably explains the how and why of each stretch and flex. Designed to enhance circulation and step up your pep, this 46-minute routine, which draws on calisthenics and low-impact aerobics, lets you shape up at your own pace. (Increase Video, $29.95; 800-233-2880)
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