tendinopathy

A tendon is the tough cable that ties a muscle to a bone. When that cable becomes painful and stops tolerating its usual work — the outside of the elbow that screams when you grip, the back-of-heel cord that aches on the first steps each morning — the umbrella word for the problem is tendinopathy. It is one of the commonest reasons active people, and plenty of inactive ones, end up in a rehabilitation clinic.

The old name was 'tendinitis', which means inflammation of the tendon, and for a long time the assumed problem was an inflamed, hot tendon to be cooled and rested. When researchers actually looked at chronic painful tendons under the microscope, they mostly found not classic inflammation but degeneration: disorganised, frayed collagen, abnormal ground substance, and ingrowth of new vessels and nerves — failed healing of a tissue that was overloaded faster than it could repair. So the more accurate, more honest term became 'tendinopathy' (or 'tendinosis' for the degenerative picture). This distinction matters because it changes treatment: pure rest and anti-inflammatories address an inflammation that is largely not there, whereas the degenerated collagen actually needs progressive, often quite heavy, loading to remodel.

In practice, tendinopathy is usually treated with a graded, painful-but-tolerable loading program — slow heavy resistance or eccentric exercise that stresses the tendon enough to stimulate repair without overwhelming it. It is slow: meaningful change takes months, not days, because tendon is poorly vascular. Patience and dosed load, not rest alone, are the core of recovery, and chasing quick fixes (a steroid shot into the tendon, total rest) can leave the tendon weaker.