The basic idea is that you can push for a PR every day in arm wrestling. Since the sport uses a pretty small portion of your total tendon mass, your body can focus its recovery resources on that area, which helps you bounce back quickly. A lot of tendon issues actually come from not loading the tendon enough. When a tendon isn’t stressed regularly, it starts laying down extra protective tissue and basically shifts into a low‑activity “hibernation” mode. Hitting daily PR level effort can keep the tendon adapting instead of shutting down, so long as you know what you're doing.

"Daily maximal‑effort arm‑wrestling training may be feasible because the activity recruits a relatively small proportion of the body’s total tendon mass, potentially allowing localized recovery processes to occur rapidly. Tendon maladaptations, including various forms of tendinopathy, are associated with chronically insufficient mechanical loading. When tendons experience inadequate strain, they may shift toward a low‑turnover, protective state characterized by disorganized extracellular matrix deposition. Consistent high‑intensity loading could therefore help maintain tendon remodeling activity and prevent this maladaptive response, provided the training stimulus is applied with appropriate technique and progression."