I am wondering why elliptical and bike are considered to be low impact and better for people with bad knees. To me, these two seem to be using the knee joints more? Compared to walking or running on a treadmill
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Ok, take your hand and put it up against your cheek and push as hard as your can. You’re applying pressure, but the hand stays on the surface of your cheek. There’s no moment of “impact”. Now move your hand a foot away from your cheek and slap your cheek as hard as you can. That’s impact.
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