11/13/2025
Can You Lose Strength in One Week?
In the Von Ruff et al. (2025) study, 11 healthy adults aged around 57 had one leg immobilized for seven days using a sling. After just one week of non-use, the immobilized leg lost around 14% in one-rep max strength and 13% in isometric force. Muscle size barely changed, but the ability to generate force dropped sharply.