Sean Gibbons

Virtually all diseases follow a pathway of stages in their causation, development and presentation.

This framework provides a strategy to understand the complexity. Pain is NOT Simple.

Let's embrace the complexity

researchgate.net/publication/37…

Why would we expect ONLY "muscle weakness" to involved in a movement pattern?

There are multiple causes of altered movement patterns.
Muscle weakness is only one.
Designs testing only one cause have a high risk of a "washout" type effect.

Tolerance isn't the same as capacity.
Tolerance=the extent to which tissues and body systems limit the adverse response to a given load.

Passive: the threshold where an adverse response begins (from capacity).
Active: how steeply the response rises (from modulating the response)

The tissue adaptation model is one of the most widely used models in rehabilitation.

Its core principle is sound, but several assumptions have been built on that principle as it’s commonly applied, and they don’t all hold up.

smarterehab.blog/2026/11/02/the…

Capacity is one of the most used terms in sports medicine and rehabilitation, and one of the least defined. The same word is used for tissue load tolerance, muscle strength, fitness and what a person can do.
smarterehab.blog/2026/11/01/reh…