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. 2007 Jan;83(975):16–20. doi: 10.1136/pgmj.2006.048587

Table 1 Examples of biomedical factors which may contribute towards onset of frailty.

Clinical Pathophysiological
Weakness Insulin resistance
Weight loss (unintentional) Increased blood‐clotting activity
Viral infection Sarcopenia
Obesity Decreased VO2max
Comorbidity Lowered testosterone
Cognitive impairment
Fatigue
Anaemia
Inflammation

VO2max, maximal oxygen consumption.