Using a kettlebell instead of a dumbbell or any other piece of equipment can have more positive effects than one might think. As it seems like an extension of your hand, the very shape of the bell with a handle provides more flexibility in your motion, which therefore makes it more natural and healthy. In addition, better flexibility enables you to include your entire body in the workout.
In a bit of irony, if you search for kettlebell lower back pain, the results are not that favorable for using the kettlebell. There is a lot of discussion on back pain caused by kettlebell exercises due to improper technique. It’s unfair really, as such pain comes from mistakes made and not from the nature of the exercises. However, when doing these exercises correctly, it can actually help alleviate lower back pain and strengthen the back in general.
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