I have exercised for years alternating biking with hiking.
Last few weeks, I added one hour per session on a Elliptical trainer. My Cycle Opps trainer axle broke, so I had to use a Recumbent trainer.
Hiking on flat ground, I did no slipping or shocks, I experienced a sharp pain in my left knee. I had to limp back to the car. Looking for causation: Is it either of these two new forms of trainers? Both trainers act differently on my knees, I feel that.
I gave the legs some rest and it feels much better but I am concerned. This never happened to me before.
I stopped using both machines and will report what that will do.
In the meantime, does anyone have any insight?
I Googled it and found nothing.