Hi,
This is the story of my running life as well. I have had a re-occurring hamstring injury for the past 5 years or so. Mine is also a fickle injury that comes and goes as well. I have been through many, many PT's. I steer clear of anyone who recommends aggressive stretching since stretching generally makes the injury worse. Gentle stretching okay. Earlier this year I saw a new PT who started me on the McKenzie method of treating the back (lumbar) to address the leg pain. They did have me stop running for about 4 months and I stopped biking for about 2 months. This has actually worked for the most part. My hamstring still has it's fickle times (mostly speedwork). I was also told at one point that I had a hyper-flexible SI joint and got Prolotherapy for this (1 treatment) and I didn't think it did anything and other PT's said that this was not the problem. I have had MRI's done and it showed inflammation and/or scar tissue.
I am mostly really careful with speedwork. Hamstring doesn't usually bother on the bike either. I hope that helps Good luck!
Good luck!

Thanks for the answer!
Same for me regarding speed work, as soon as I do 400 meters or i00 meters fast, I get injured again!
I did ROTH Iron distance in July and was very carefull in the training and I didn’t do speed work since anyway my marathon pave would be slow ( i did 5h13 marathon) but I was hoping to do a 3h59 marathon in Valencia in a month so I would need some speed work!
Will rest and start biking soon.
Thanks again

Squats and deadlifts and talk to your doctor and PT

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This is the sort of thing that helped resolve mine too. Simply taking time off from running did nothing for me, and no, don't try to stretch an injured hamstring!

Strengthening everything on either end of the hamstring (glutes, calves, etc) is what finally ended my 2 year high hamstring tendonopathy. Eventually I added in light hamstring curls as well, but not until it was pain free.

I really injured my hammy a few years ago. Did not know what it was and kept going. Finally saw a wonderful PT who helped me get going again. When progress flatlined, she sent me to a sports med doc. MRI showed tons of scar tissue and calcification. (Side note: Shop around for MRI options. You can often find places where that is all they do and they have different rates based on when you are available to come in. A buddy in Detroit went at 2am and saved several hundred $$$).

Anyway, we did PRP. The doc's experience was higher than the national average. I don't recall numbers, but I was desperate to be able to run and ride again (like you, hard work about killed me). 3 months of NOTHING, then we started recovery. Work was hard as I could not lift much weight. (I could swim but not use my legs. I did not trust myself so took it as a serious break). Then the PT and I slowly got me doing stuff again. She was in contact with the Dr throughout everything.

If you want to know more, give me a shout.

Since you know you have scar tissue buildup, I suggest you find an experienced PRP sports doc. Investigate your options. One that works with a PT. At this point, what do you have to lose by investigating?

Make sure eccentric hamstring curls are part of your strength routine.

The only way to get rid of it is to properly load the muscle. Eccentric curls and hamstring bridges.

Also, do a search for mortysct on this forum.
He is the Gold Standard when it comes to tendinopathy treatment.

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"Good genes are not a requirement, just the obsession to beat ones brains out daily"...the Griz

This. Get stronger! Single leg RDL, hamstring and glute bridges. You can use sliders to make the bridges eccentric/concentric too. TBH I doubt a doctor would add much.

Thanks to all for your answer, very helpful!
It seems that glutes workout is key!
I do not believe it is on tendons but more on the middle/deep part of the hamstring
Will follow your advices and hopefully it will work
Since biking on home trainer doesnt hurt, should I bike or better to skip all legs work for a while?
I have Valencia marathonin a month, I believe I should skip it, but 40 of my friends are planning to do it so I hesitate to try!

My PT has me doing eccentric curls and bridges among other things.

This is the first time I've had a running injury so i don't have much experience with this but rest, strengthening, stretching, Grafton (sp?) and time are getting me through this.

Don't kid yourself. I'll bet dollars to donuts that it's high hamstring tendinopathy. Rest will not cure it. Glute work alone will not cure it.

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"Good genes are not a requirement, just the obsession to beat ones brains out daily"...the Griz

!!!

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https://www.strava.com/...tes/zachary_mckinney

Should I do squats, curls and so on if I have moderate pain or wait until I am painfree?

Find Mortystc's reply in this thread. It's on page 5.
https://forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Triathlon_Forum_F1/High_Hamstring_Tendinopathy_Rehab_Protocol_P2979770-5

If you are willing to go slow, be thorough and follow his advice, you will get past this.
HHT dogged me for two years. I found this and 6 months later...kabam! Gone.

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"Good genes are not a requirement, just the obsession to beat ones brains out daily"...the Griz

Thanks a lot!

In the early phase of rehab isometric or eccentric load will often irritate the injury less.