5 Surprising Causes of Weak Legs in Seniors—

prescribed exercises can help many people.
In more severe cases, injections or surgery may be considered.
🚩 5. Too Little Activity and Inadequate Protein Intake

Why it surprises people: Muscle loss can accelerate when older adults become less active, especially after illness, injury, hospitalization, or prolonged bed rest.

The cycle: Less activity → muscle loss → movement becomes harder → activity decreases further.

Protein also matters. The general adult RDA is 0.8 g of protein per kilogram of body weight per day, but many experts recommend that healthy older adults consume more than