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WarChild · 02-28-2009, 06:55 PM

So over the last few weeks my knees have been getting sore and I thought for sure it was from all the Jiu Jitsu. I took it easy for a week there, and it still seemed to be getting worse. Finally a couple of days ago my one knee kind of gave out supporting me and was really painful for a few minutes so I finally went and saw a Doctor.

It turns out I have an inflamed MCL in one knee and an inflamed ACL in the other. The Doctor was surprised that I'd have damaged both knees at one time like that. He asked me if I'd changed my training at all in the last little while and I mentioned the only thing I had done is changed from running on thre road, because of the snow, to running on a treadmill.

I was always under the impression that running on concrete was worse for your knees than running on a teadmill. Not so according to this Doctor. He told me that as long as you have good running shoes, they will suck up almost all of the impact from the concrete and what impact they don't suck up is atleast applied in one constant force. In order words it's always your foot going straight down in to the concrete.

The Doctor went on to say that even the very best Treadmills, and especially at gyms where they're used an awful lot, don't move perfectly underneath you. They flex and rebound up and down and/or can wobble slightly side to side. It can be so minor you don't even feel it but it forces the ligaments in the knee to constantly have to balance this motion out. Cumatively this can eventually cause the problems I am now having. I was told to walk on a teadmill but run on solid ground.

Anybody ever hear anything like this before?

02-28-2009, 06:55 PM
WarChild Let slip the dogs of war. Industry Role: Join Date: Jan 2003 Location: Bermuda Posts: 17,263	Running and treadmills. So over the last few weeks my knees have been getting sore and I thought for sure it was from all the Jiu Jitsu. I took it easy for a week there, and it still seemed to be getting worse. Finally a couple of days ago my one knee kind of gave out supporting me and was really painful for a few minutes so I finally went and saw a Doctor. It turns out I have an inflamed MCL in one knee and an inflamed ACL in the other. The Doctor was surprised that I'd have damaged both knees at one time like that. He asked me if I'd changed my training at all in the last little while and I mentioned the only thing I had done is changed from running on thre road, because of the snow, to running on a treadmill. I was always under the impression that running on concrete was worse for your knees than running on a teadmill. Not so according to this Doctor. He told me that as long as you have good running shoes, they will suck up almost all of the impact from the concrete and what impact they don't suck up is atleast applied in one constant force. In order words it's always your foot going straight down in to the concrete. The Doctor went on to say that even the very best Treadmills, and especially at gyms where they're used an awful lot, don't move perfectly underneath you. They flex and rebound up and down and/or can wobble slightly side to side. It can be so minor you don't even feel it but it forces the ligaments in the knee to constantly have to balance this motion out. Cumatively this can eventually cause the problems I am now having. I was told to walk on a teadmill but run on solid ground. Anybody ever hear anything like this before? __________________ .