Management of 43 y.o. female with suspected bilateral hamstring tendonosis.

43 year old female
avid runner 3-4 miles 3x/week
considers herself fairly flexible.

Has been a patient over a year and has been dealing with hamstring issues the entire time. We got her to the point where she could run with some regularity but then since July she has had this mild lingering problem that vacillates between a 2 and 4/10 in intensity. I have been preaching load management since she was previously running 5-6miles 3x/week while training for a race and she has reduced the runnings while adding yoga 3-4 times per week (which I told her was still too much load).

Has a consistent 4-5/10 tension/ache at proximal hamstring bilaterally with yoga and running.

Better with rest.

B SLR 90 degrees, 2-3/10 tension from ischial tuberocity down hamstring ~6 inches. Dorsiflexion does not change symptom intensity.

Palpation reveals firm and very tender adhesion at proximal hamstring attachment bilaterally.

In the IAR seminar we were told that tendonosis would need very consistent treatment and eccentric exercises to promote healthy tendon growth. IAR on with eccentric heel lifts is prescribed for achilles tendonosis, but what about the proximal hamstring? l told her it would take months of regular care (MAR) to fix, but what exercise should I pair with it? Is there an updated ID move to better treat this than exists online?