Physical function
Grip strength
A simple measure of upper-limb strength and a broader marker of physical function.
What it measures
Maximum hand-grip force under a standardized protocol.
Why it matters
Low grip strength is associated with frailty, disability and adverse outcomes in aging populations.
How to interpret it
Use standardized equipment and age/sex context.
Important limitations
Affected by technique, injury and body size; it is not specific to one aging mechanism.
Evidence status
Established risk / function marker
Widely used functional aging measure with substantial epidemiologic evidence.
Research & guidance
Original papers, validation studies, reviews and clinical guidance connected to this measurement.
clinical/public-health guidance
Integrated care for older people (ICOPE): implementation and healthy ageing framework
World Health Organization · 2026
WHO identifies reduced muscle strength and gait speed as early markers of declining intrinsic capacity in older people.
systematic review / meta-analysis
Thresholds of handgrip strength for all-cause, cancer, and cardiovascular mortality: A systematic review with dose-response meta-analysis
Ageing Research Reviews · 2022
Dose-response evidence supports grip strength as a prognostic physical-function marker; thresholds and relationships vary by outcome.
consensus statement
Sarcopenia: revised European consensus on definition and diagnosis
Age and Ageing · 2019
Low muscle strength is a key characteristic in the EWGSOP2 sarcopenia framework.
systematic review / meta-analysis
Objectively measured physical capability levels and mortality: systematic review and meta-analysis
BMJ · 2010
Lower grip strength and slower walking speed were associated with higher all-cause mortality across cohort studies.
For education and evidence exploration, not diagnosis or individualized medical advice.