I am active at home, so why do I have knee osteoarthritis?
AI-generated illustration. This is not a real patient or a diagnostic image.
Working around the house all day, climbing stairs and carrying shopping can be tiring. They do not guarantee balanced strengthening of the muscles around the knee or good adaptation of the joint to every movement.
Does osteoarthritis have a single cause?
Osteoarthritis is more than cartilage being worn out through overuse. It affects different joint tissues and is associated with multiple factors. Age, previous injuries, genetics, weight and joint loading all contribute.
It is therefore unhelpful either to blame yourself for not moving enough or to assume every movement wears your knee out. What matters is a sustainable pattern of activity with appropriate loading.
Why is planned exercise different?
Prolonged squatting or kneeling can worsen symptoms in some people. In contrast, individually appropriate strengthening and aerobic exercise can benefit pain and function. Starting loads and progression are adjusted to the person's condition.
Weight management is also part of treatment when needed. The aim is not to stop all movement, but to develop a sustainable plan that considers pain, strength and everyday life together.
Sources
This article provides general information. Individual diagnosis and treatment require a clinical assessment.