dynapenia

Definition

The age-related or disease-related loss of muscle strength, independent of the loss of muscle mass (atrophy).

Etymology

Derived from the Greek 'dynamis' (power or strength) and 'penia' (deficiency or poverty). The term was coined to describe the functional decline of muscles separately from the quantitative loss of tissue.

In the news

Although not explicitly defined in the text, the article explores the concept of dynapenia by distinguishing between 'muscle mass' (size) and 'handgrip strength' (function) as predictors of cancer survival.

Muscle Health Emerges as Key Predictor of Cancer Patient Outcomes

Bioengineer.org

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