Repeated exercise, or wasting, can change the way key genes work.

Objective To update a systematic review on the association between knee extensor muscle weakness and the risk of incident knee osteoarthritis in women and men. Data sources Systematic searches in ...

Objective This study aimed to investigate how knee extensor and flexor strength change over time after anterior cruciate ligament reconstruction (ACLR). Design Systematic review with longitudinal meta ...

Senior man and senior woman in sports wear doing workout at home. This article is part of a broad series on recent advances in the science and medicine of longevity and aging. The series covers a ...

Loss of muscle mass (muscle atrophy) can be a result of aging or lifestyle habits, like being inactive or eating a poor diet. Muscle loss can also point to hormone abnormalities or underlying health ...

If you don’t use it, you lose it. That’s common wisdom, backed up by science, about what happens to aging muscles. And if your goal is to lose weight – whether you have obesity or a few pounds to drop ...