A 2-Hour Workout in 20 Minutes? My Week Testing a High-Tech Fitness Suit

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I post some of the more interesting articles in the WSJ.



The Katalyst training suit promises to use muscle-stimulating electrodes to supercharge guided workouts. One skeptical writer zipped herself in for a week.

SHOCK IT TO ME The Katalyst training suit is expensive, but doctors and trainers say it uses relatively standard technology. KATALYST

SUMMER’S HERE and the livin’ is lazy. So when I learned of a wearable suit that stimulates your muscles while you exercise with virtual coaches and promises to make a 20-minute workout as effective as a two-hour one, I was eager to try it out.

I’ve never seen anything like the tangle of a vest, belt, shorts, armbands, and electrodes that is the Katalyst Training System ($2,499, annual membership from $49/month), but the technology it employs is actually somewhat conventional. It works via electrical muscle stimulation (EMS), eliciting “muscle contraction using electrical impulses,” said Sabrena Jo, senior director of science and research for the American Council on Exercise (ACE).

Initially conceived to rehabilitate injured muscles, EMS devices are gaining popularity as a training timesaver. Dr. Gabrielle Lyon, a doctor of functional medicine in New York, says EMS training can activate nearly twice as much muscle fiber as traditional strength training.

more info at:

A 2-Hour Workout in 20 Minutes? My Week Testing a High-Tech Fitness Suit – WSJ



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