Frailty in Older Adults: Exercise, Mobility and Functional Reserve

Clinical frame

Frailty describes increased vulnerability to stressors and reduced reserve. It is not synonymous with chronological age. Rehabilitation should identify reversible contributors and build capacity rather than automatically restricting activity.

Assessment

• Recent functional decline, falls and hospitalizations.
• Gait speed, transfers, balance and lower-limb strength.
• Fatigue, weight/nutrition concerns and physical activity.
• Cognition, mood, medications and social support requiring team input.

Management

Multicomponent exercise should combine progressive resistance, balance and functional mobility. Walking alone may be insufficient when strength and power are major limitations.

Dosage and progression

• Start below the threshold that produces prolonged fatigue.
• Train major functional patterns 2–3 times weekly when tolerated.
• Progress resistance and reduce support as control improves.
• Include sit-to-stand, stepping, turning and walking tasks relevant to daily life.

Red flags

• Rapid unexplained decline, syncope, acute neurological change, severe new breathlessness or unexplained weight loss require medical assessment.

Common mistakes

• Assuming frail means too fragile to strengthen.
• Using only seated low-intensity exercise.
• Ignoring nutrition, medications and cognition.

Clinical pearls

• Reserve can improve.
• Strength and power support independence.
• Progressive challenge should be individualized, not avoided.

Concise summary

Frailty rehabilitation uses individualized multicomponent exercise and multidisciplinary risk management to rebuild functional reserve, mobility and participation.