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**Derek Miles** · 11-25-2020, 03:18 PM

My short answer to this, without typing out a dissertation, is "no." The magnitude of loading seems to be the integral component to what would be deemed positive adaptation with tendinopathy.

Human tendon adaptation in response to mechanical loading: a systematic review and meta-analysis of exercise intervention studies on healthy adults - PubMed

https://pubmed.ncbi.nlm.nih.gov/27747846/

The present meta-analysis provides elaborate statistical evidence that tendons are highly responsive to diverse loading regimens. However, the data strongly suggests that loading magnitude in particular plays a key role for tendon adaptation in contrast to muscle contraction type. Furthermore, inter …

Effects of Increased Loading on In Vivo Tendon Properties: A Systematic Review - PubMed

https://pubmed.ncbi.nlm.nih.gov/25563908/

In line with some cross-species observations about tendon design, tendon cross-sectional area allegedly constitutes the ultimate adjusting parameter to increased loading. We propose here a theoretical model placing tendon hypertrophy and adjustments in material properties as parts of the same adapti …

Page not available - PMC

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5717808/

BFR has been gaining traction as a panacea for training through an injury but the evidence has not caught up to support its utility. Much of the case for it is based from extrapolating physiological studies which has not worked out well in the long run in the past. A quick pubmed search only showed one trial:

Low-load blood flow restriction training induces similar morphological and mechanical Achilles tendon adaptations compared with high-load resistance training - PubMed

https://pubmed.ncbi.nlm.nih.gov/31725362/

Low-load blood flow restriction (LL-BFR) training has gained increasing interest in the scientific community by demonstrating that increases in muscle mass and strength are comparable to conventional high-load (HL) resistance training. Although adaptations on the muscular level are well documented, …

The problem with this in general tendon physiological adaptation is slow so even at 14 weeks I would not put much stock in the changes noted.

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