Hi Janet, Good questions here. I think that the injury developed over a period of time during training, the chronic type of strain. I have read an article on high hamstring tendinopathy and that definately sounds and feels like what is going on. I failed the tests for tendinopathy that a PT would give - meaning I have that. I agree the eccentric excersizes would help, but the muscle is so tight and weak that it made it hurt in the past. As soon as I can manage these I will take them up. Good suggestion though. When you say weak lateral hips and weak lateral abs, which muscles are you describing and which exercises might you suggest? I have had a gait analysis, and the big suggestion was to stop running because the range of motion in my two hamstrings was very different. I do wear Brooks Beast running shoes, since I am very pronated. My bike has been professionally fit albeit to a very aggressive, forward postion that promotes the hips and iliopsoas to be come tight. I have stopped biking until I can get this under control. Thanks for the chat.
Reply - Janet
You can start simple eccentric exercises at any point -- they don't have to be the high level ones.  Simply doinig things like a ball bridge exercise for example would do the trick. In this case you'd bridge up using two legs (concentric), then return to the start position using one leg (eccentric).  By doing that, you increase the eccentric loading factor.  I'm not saying that's the right exercise for you - I'm just using that as an example to get you thinking. In order to help you with specific exercises I'd need to know a lot more about you. 
Muscles of the lateral hips - gluteus medius in particular, and lateral abs - I'm talking about transverse abdominals, quadratus lumborum and lower back extensors.  
The fact that you know you pronate and you're wearing a serious motion controlling shoe makes me wonder if perhaps custom orthotic support would be a thing to consider. Excessive pronation is sometimes a key factor in hamstring tendinopathy (as well as many other chronic overuse injuries).
The bike - unless you're in contention for some serious racing you'd be better off getting your bike re-fit to a less aggressive position.  If you're racing at a highly competitive level and regularly competitng for 1st or 2nd overall.... then you may want to maintain that aggressive alignment. 
Hope this helps - if you'd like specific exercise and training guidance, click over to the "Services" page of this website and download and complete the coaching questionnaire linked at the top of that page. Send it to me and we can get started.  Janet Hamilton, MA, RCEP, CSCS, RRCA coaching instructor

Hi Janet, I've been a runner and triathlete for years here in Florida. I have had some hamstring pain for about the last 4 months I am working on resolving. Maybe you could help. Here are some of the symptoms and what I've tried. Can you suggest which might be your preference or if you might have other ideas. History of tight hamstrings, tight hips, slight knee pain, pain on outside of hip. Have anterior pelvic tilt. Hamstring muscle aching at high and low hamstring attachments and belly of muscle. Reduced/eliminated training for 4 months. Past 3 weeks no running, biking, weighlifting, anything with lower body including stretching, except swim with pull buoy. After no stretching pain went away. Began massaging on my own (Julstro self-massage), pain returns. After stretching, pain returns worse. Did 6 weeks of phyisical therapy - pain was worse. Three ART deep tissue massage sessions - painful, no improvement after pain subsided. Chiropractor said back is okay, no "short leg" issues. Ultrasound seems to help with pain as long as there is no massaging or stretching.
Reply - Janet
Wow - you've been through the wringer with this injury! Was there any initial "trauma" involved in the original onset of symptoms or was it a slow overuse-type onset? It sounds like your chiropractor has ruled out your lower back as a causative factor, and the fact that stretching makes things feel worse makes me wonder if you have a hamstring tendinopathy.  If it's a tendinosis rather than a tendinitis - perhaps a focus on eccentric type exercises would be the way to go? If you do a hamstring curl machine - the curling motion is a "concentric" muscle action, and the lowering back down of the machine is an "Eccentric" muscle action.  I'm not a big fan of machines, but that's an easily visualized example.  The things that I've found contribute to hamstring pain include tight calves and hip flexors (you mentioned you were tight in your hip flexors so that ties in), weak lower back extensors, weak lateral hips and weak lateral abdominals.  Perhaps these are areas to examine? In addition - if you've not had a gait analysis done, that might be worth doing - just to insure that the shoes you're wearing are the tight amount of control and support for your foot type. Finally - I'll assume you've had a bike-fit done professionally but if you haven't then certainly look into that.    Hope this is some food for thought.  Janet Hamilton, MA, RCEP, CSCS, RRCA coaching instructor

This coming Wednesday, the 6th, I'm having surgery to repair a ruptured achilles' tendon. I'm 65, but very active, and want to get back to running as soon as it's appropriate / logical. Would welcome any counsel on my rehab. Thank you, Will
Reply - Janet
Will, there's no way to tell at this point what your long-term outcomes will be.  Part of it depends on your surgeon, the condition of your tendon, associated muscle/tendon flexibility and strength, how well you rehabilitate post-operatively, etc.  Certainly it's important to discuss your wishes to return to running with the surgeon, as well as the Physical Therapist he/she refers you to post-operatively.  Follow the guidelines to the letter - they're written to optimize your healing! When you've been cleared by your physician and PT to resume walking without any external support (boot or other orthotic device) then I'll be happy to guide you from that point back to running if you're cleared to do so.  Take it one step at a time -- get through Wednesday's surgery in good shape and get through the initial rehab phase (super important!) - then we can talk again! I'll be sending you "good energy" on Wednesday!  Hopefully all goes well and there's plenty of tendon to work with. Don't lose hope, lots of people come back from these surgeries to return to a pretty active lifestyle!  Janet Hamilton, MA, RCEP, CSCS, RRCA coaching instructor