Recently the New York Times put up a blog about a Danish study of using kettlebells to ease back pain.
Turning to Kettlebells to Ease Back Pain
The article has some of the usual errors - it describes a press as an isolation exercise. Er, no. There is no press I can think of that's an isolation exercise, they all involve multiple joints. Nevermind the "kettlebell press" is one of the keystone kettlebell exercises, so even if it was "isolation" it wouldn't be unique to non-kettlebell weights to do it. It also fails to mention that there are plenty of swinging dumbbell exercises too, although it is correct that people don't do them very often.
The article turns into a bit of a commercial for kettlebell classes, but it gets a lot right - weights, under proper supervision and done while standing and moving, are healthy and functional ways to exercise.
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